/root/firefox-clang/media/ffvpx/libavutil/opt.c

Bug Summary

File:	root/firefox-clang/media/ffvpx/libavutil/opt.c
Warning:	line 1105, column 48 Array access (from variable 'bin') results in a null pointer dereference
Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -O2 -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name opt.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -analyzer-config-compatibility-mode=true -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -mframe-pointer=all -relaxed-aliasing -ffp-contract=off -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/root/firefox-clang/obj-x86_64-pc-linux-gnu/media/ffvpx/libavutil -fcoverage-compilation-dir=/root/firefox-clang/obj-x86_64-pc-linux-gnu/media/ffvpx/libavutil -resource-dir /usr/lib/llvm-23/lib/clang/23 -include /root/firefox-clang/obj-x86_64-pc-linux-gnu/mozilla-config.h -include libavutil_visibility.h -U _FORTIFY_SOURCE -D _FORTIFY_SOURCE=2 -D DEBUG=1 -D HAVE_AV_CONFIG_H -D ASSERT_LEVEL=2 -I /root/firefox-clang/media/ffvpx/libavutil -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/media/ffvpx/libavutil -I /root/firefox-clang/third_party/khronos/vulkan-headers/include -I /root/firefox-clang/media/mozva -I /root/firefox-clang/third_party/drm/drm -I /root/firefox-clang/third_party/drm/drm/include -I /root/firefox-clang/third_party/drm/drm/include/libdrm -I /root/firefox-clang/media/ffvpx -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dist/include -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dist/include/nspr -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dist/include/nss -D MOZILLA_CLIENT -internal-isystem /usr/lib/llvm-23/lib/clang/23/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/16/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -Wno-error=tautological-type-limit-compare -Wno-range-loop-analysis -Wno-error=deprecated-declarations -Wno-error=array-bounds -Wno-error=free-nonheap-object -Wno-error=atomic-alignment -Wno-error=deprecated-builtins -Wno-psabi -Wno-error=builtin-macro-redefined -Wno-unknown-warning-option -Wno-character-conversion -Wno-parentheses -Wno-pointer-sign -Wno-sign-compare -Wno-switch -Wno-type-limits -Wno-unused-function -Wno-deprecated-declarations -Wno-absolute-value -Wno-incompatible-pointer-types -Wno-string-conversion -Wno-visibility -ferror-limit 19 -fstrict-flex-arrays=1 -stack-protector 2 -fstack-clash-protection -ftrivial-auto-var-init=pattern -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -fdiagnostics-absolute-paths -vectorize-loops -vectorize-slp -analyzer-checker optin.performance.Padding -analyzer-output=html -analyzer-config stable-report-filename=true -mllvm -dwarf-linkage-names=Abstract -faddrsig -fdwarf2-cfi-asm -o /tmp/scan-build-2026-10-17-231001-351276-1 -x c /root/firefox-clang/media/ffvpx/libavutil/opt.c
1/*
* AVOptions
* Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/

22/**
* @file
* AVOptions
* @author Michael Niedermayer <michaelni@gmx.at>
*/

28#include "avutil.h"
29#include "avassert.h"
30#include "avstring.h"
31#include "channel_layout.h"
32#include "dict.h"
33#include "eval.h"
34#include "log.h"
35#include "mem.h"
36#include "parseutils.h"
37#include "pixdesc.h"
38#include "mathematics.h"
39#include "opt.h"
40#include "samplefmt.h"
41#include "bprint.h"

43#include <float.h>

45#define TYPE_BASE(type)((type) & ~AV_OPT_TYPE_FLAG_ARRAY) ((type) & ~AV_OPT_TYPE_FLAG_ARRAY)

47const AVOption *av_opt_next(const void *obj, const AVOption *last)
48{
  const AVClass *class;
  if (!obj)
      return NULL((void*)0);
  class = *(const AVClass**)obj;
  if (!last && class && class->option && class->option[0].name)
      return class->option;
  if (last && last[1].name)
      return ++last;
  return NULL((void*)0);
58}

60static const struct {
  size_t      size;
  const char *name;
63} opt_type_desc[] = {
  [AV_OPT_TYPE_FLAGS]         = { sizeof(unsigned),       "<flags>" },
  [AV_OPT_TYPE_INT]           = { sizeof(int),            "<int>" },
  [AV_OPT_TYPE_INT64]         = { sizeof(int64_t),        "<int64>" },
  [AV_OPT_TYPE_UINT]          = { sizeof(unsigned),       "<unsigned>" },
  [AV_OPT_TYPE_UINT64]        = { sizeof(uint64_t),       "<uint64>" },
  [AV_OPT_TYPE_DOUBLE]        = { sizeof(double),         "<double>" },
  [AV_OPT_TYPE_FLOAT]         = { sizeof(float),          "<float>" },
  [AV_OPT_TYPE_STRING]        = { sizeof(char *),         "<string>" },
  [AV_OPT_TYPE_RATIONAL]      = { sizeof(AVRational),     "<rational>" },
  [AV_OPT_TYPE_BINARY]        = { sizeof(uint8_t *),      "<binary>" },
  [AV_OPT_TYPE_DICT]          = { sizeof(AVDictionary *), "<dictionary>" },
  [AV_OPT_TYPE_IMAGE_SIZE]    = { sizeof(int[2]),         "<image_size>" },
  [AV_OPT_TYPE_VIDEO_RATE]    = { sizeof(AVRational),     "<video_rate>" },
  [AV_OPT_TYPE_PIXEL_FMT]     = { sizeof(int),            "<pix_fmt>" },
  [AV_OPT_TYPE_SAMPLE_FMT]    = { sizeof(int),            "<sample_fmt>" },
  [AV_OPT_TYPE_DURATION]      = { sizeof(int64_t),        "<duration>" },
  [AV_OPT_TYPE_COLOR]         = { sizeof(uint8_t[4]),     "<color>" },
  [AV_OPT_TYPE_CHLAYOUT]      = { sizeof(AVChannelLayout),"<channel_layout>" },
  [AV_OPT_TYPE_BOOL]          = { sizeof(int),            "<boolean>" },
83};

85// option is plain old data
86static int opt_is_pod(enum AVOptionType type)
87{
  switch (type) {
  case AV_OPT_TYPE_FLAGS:
  case AV_OPT_TYPE_INT:
  case AV_OPT_TYPE_INT64:
  case AV_OPT_TYPE_DOUBLE:
  case AV_OPT_TYPE_FLOAT:
  case AV_OPT_TYPE_RATIONAL:
  case AV_OPT_TYPE_UINT64:
  case AV_OPT_TYPE_IMAGE_SIZE:
  case AV_OPT_TYPE_PIXEL_FMT:
  case AV_OPT_TYPE_SAMPLE_FMT:
  case AV_OPT_TYPE_VIDEO_RATE:
  case AV_OPT_TYPE_DURATION:
  case AV_OPT_TYPE_COLOR:
  case AV_OPT_TYPE_BOOL:
  case AV_OPT_TYPE_UINT:
      return 1;
  }
  return 0;
107}

109static uint8_t opt_array_sep(const AVOption *o)
110{
  const AVOptionArrayDef *d = o->default_val.arr;
  av_assert1(o->type & AV_OPT_TYPE_FLAG_ARRAY)do { if (!(o->type & AV_OPT_TYPE_FLAG_ARRAY)) { av_log
(((void*)0), 0, "Assertion %s failed at %s:%d\n", "o->type & AV_OPT_TYPE_FLAG_ARRAY"
, "/root/firefox-clang/media/ffvpx/libavutil/opt.c", 112); abort
(); } } while (0);
  return (d && d->sep) ? d->sep : ',';
114}

116static void *opt_array_pelem(const AVOption *o, void *array, unsigned idx)
117{
  av_assert1(o->type & AV_OPT_TYPE_FLAG_ARRAY)do { if (!(o->type & AV_OPT_TYPE_FLAG_ARRAY)) { av_log
(((void*)0), 0, "Assertion %s failed at %s:%d\n", "o->type & AV_OPT_TYPE_FLAG_ARRAY"
, "/root/firefox-clang/media/ffvpx/libavutil/opt.c", 118); abort
(); } } while (0);
  return (uint8_t *)array + idx * opt_type_desc[TYPE_BASE(o->type)((o->type) & ~AV_OPT_TYPE_FLAG_ARRAY)].size;
120}

122static unsigned *opt_array_pcount(const void *parray)
123{
  return (unsigned *)((const void * const *)parray + 1);
125}

127static void opt_free_elem(enum AVOptionType type, void *ptr)
128{
  switch (TYPE_BASE(type)((type) & ~AV_OPT_TYPE_FLAG_ARRAY)) {
  case AV_OPT_TYPE_STRING:
  case AV_OPT_TYPE_BINARY:
      av_freep(ptr);
      break;

  case AV_OPT_TYPE_DICT:
      av_dict_free((AVDictionary **)ptr);
      break;

  case AV_OPT_TYPE_CHLAYOUT:
      av_channel_layout_uninit((AVChannelLayout *)ptr);
      break;

  default:
      break;
  }
146}

148static void opt_free_array(const AVOption *o, void *parray, unsigned *count)
149{
  for (unsigned i = 0; i < *count; i++)
      opt_free_elem(o->type, opt_array_pelem(o, *(void **)parray, i));

  av_freep(parray);
  *count = 0;
155}

157/**
* Perform common setup for option-setting functions.
*
* @param require_type when non-0, require the option to be of this type
* @param ptgt         target object is written here
* @param po           the option is written here
* @param pdst         pointer to option value is written here
*/
165static int opt_set_init(void *obj, const char *name, int search_flags,
                      int require_type,
                      void **ptgt, const AVOption **po, void **pdst)
168{
  const AVOption *o;
  void *tgt;

  o = av_opt_find2(obj, name, NULL((void*)0), 0, search_flags, &tgt);
  if (!o || !tgt)
      return AVERROR_OPTION_NOT_FOUND(-(int)((0xF8) | (('O') << 8) | (('P') << 16) | (
(unsigned)('T') << 24)));

  if (o->flags & AV_OPT_FLAG_READONLY(1 << 7))
      return AVERROR(EINVAL)(-(22));

  if (require_type && (o->type != require_type)) {
      av_log(obj, AV_LOG_ERROR16,
             "Tried to set option '%s' of type %s from value of type %s, "
             "this is not supported\n", o->name, opt_type_desc[o->type].name,
             opt_type_desc[require_type].name);
      return AVERROR(EINVAL)(-(22));
  }

  if (!(o->flags & AV_OPT_FLAG_RUNTIME_PARAM(1 << 15))) {
      unsigned *state_flags = NULL((void*)0);
      const AVClass *class;

      // try state flags first from the target (child), then from its parent
      class = *(const AVClass**)tgt;
      if (class->state_flags_offset)
          state_flags = (unsigned*)((uint8_t*)tgt + class->state_flags_offset);

      if (!state_flags && obj != tgt) {
          class = *(const AVClass**)obj;
          if (class->state_flags_offset)
              state_flags = (unsigned*)((uint8_t*)obj + class->state_flags_offset);
      }

      if (state_flags && (*state_flags & AV_CLASS_STATE_INITIALIZED)) {
          av_log(obj, AV_LOG_ERROR16, "Option '%s' is not a runtime option and "
                 "so cannot be set after the object has been initialized\n",
                 o->name);
          return AVERROR(EINVAL)(-(22));
      }
  }

  if (o->flags & AV_OPT_FLAG_DEPRECATED(1 << 17))
      av_log(obj, AV_LOG_WARNING24, "The \"%s\" option is deprecated: %s\n", name, o->help);

  if (po)
      *po   = o;
  if (ptgt)
      *ptgt = tgt;
  if (pdst)
      *pdst = ((uint8_t *)tgt) + o->offset;

  return 0;
221}

223static AVRational double_to_rational(double d)
224{
   AVRational r = av_d2q(d, 1 << 24);
   if ((!r.num || !r.den) && d)
       r = av_d2q(d, INT_MAX2147483647);
   return r;
229}

231static int read_number(const AVOption *o, const void *dst, double *num, int *den, int64_t *intnum)
232{
  switch (TYPE_BASE(o->type)((o->type) & ~AV_OPT_TYPE_FLAG_ARRAY)) {
  case AV_OPT_TYPE_FLAGS:
      *intnum = *(unsigned int*)dst;
      return 0;
  case AV_OPT_TYPE_PIXEL_FMT:
      *intnum = *(enum AVPixelFormat *)dst;
      return 0;
  case AV_OPT_TYPE_SAMPLE_FMT:
      *intnum = *(enum AVSampleFormat *)dst;
      return 0;
  case AV_OPT_TYPE_BOOL:
  case AV_OPT_TYPE_INT:
      *intnum = *(int *)dst;
      return 0;
  case AV_OPT_TYPE_UINT:
      *intnum = *(unsigned int *)dst;
      return 0;
  case AV_OPT_TYPE_DURATION:
  case AV_OPT_TYPE_INT64:
  case AV_OPT_TYPE_UINT64:
      *intnum = *(int64_t *)dst;
      return 0;
  case AV_OPT_TYPE_FLOAT:
      *num = *(float *)dst;
      return 0;
  case AV_OPT_TYPE_DOUBLE:
      *num = *(double *)dst;
      return 0;
  case AV_OPT_TYPE_RATIONAL:
      *intnum = ((AVRational *)dst)->num;
      *den    = ((AVRational *)dst)->den;
      return 0;
  case AV_OPT_TYPE_CONST:
      *intnum = o->default_val.i64;
      return 0;
  }
  return AVERROR(EINVAL)(-(22));
270}

272static int write_number(void *obj, const AVOption *o, void *dst, double num, int den, int64_t intnum)
273{
  const enum AVOptionType type = TYPE_BASE(o->type)((o->type) & ~AV_OPT_TYPE_FLAG_ARRAY);

  if (type != AV_OPT_TYPE_FLAGS &&
      (!den || o->max * den < num * intnum || o->min * den > num * intnum)) {
      num = den ? num * intnum / den : (num && intnum ? INFINITY(__builtin_inff()) : NAN(__builtin_nanf("")));
      av_log(obj, AV_LOG_ERROR16, "Value %f for parameter '%s' out of range [%g - %g]\n",
             num, o->name, o->min, o->max);
      return AVERROR(ERANGE)(-(34));
  }
  if (type == AV_OPT_TYPE_FLAGS) {
      double d = num*intnum/den;
      if (d < -1.5 || d > 0xFFFFFFFF+0.5 || (llrint(d*256) & 255)) {
          av_log(obj, AV_LOG_ERROR16,
                 "Value %f for parameter '%s' is not a valid set of 32bit integer flags\n",
                 num*intnum/den, o->name);
          return AVERROR(ERANGE)(-(34));
      }
  }

  switch (type) {
  case AV_OPT_TYPE_PIXEL_FMT:
      *(enum AVPixelFormat *)dst = llrint(num / den) * intnum;
      break;
  case AV_OPT_TYPE_SAMPLE_FMT:
      *(enum AVSampleFormat *)dst = llrint(num / den) * intnum;
      break;
  case AV_OPT_TYPE_BOOL:
  case AV_OPT_TYPE_FLAGS:
  case AV_OPT_TYPE_INT:
  case AV_OPT_TYPE_UINT:
      *(int *)dst = llrint(num / den) * intnum;
      break;
  case AV_OPT_TYPE_DURATION:
  case AV_OPT_TYPE_INT64:{
      double d = num / den;
      if (intnum == 1 && d == (double)INT64_MAX(9223372036854775807L)) {
          *(int64_t *)dst = INT64_MAX(9223372036854775807L);
      } else
          *(int64_t *)dst = llrint(d) * intnum;
      break;}
  case AV_OPT_TYPE_UINT64:{
      double d = num / den;
      // We must special case uint64_t here as llrint() does not support values
      // outside the int64_t range and there is no portable function which does
      // "INT64_MAX + 1ULL" is used as it is representable exactly as IEEE double
      // while INT64_MAX is not
      if (intnum == 1 && d == (double)UINT64_MAX(18446744073709551615UL)) {
          *(uint64_t *)dst = UINT64_MAX(18446744073709551615UL);
      } else if (d > INT64_MAX(9223372036854775807L) + 1ULL) {
          *(uint64_t *)dst = (llrint(d - (INT64_MAX(9223372036854775807L) + 1ULL)) + (INT64_MAX(9223372036854775807L) + 1ULL))*intnum;
      } else {
          *(uint64_t *)dst = llrint(d) * intnum;
      }
      break;}
  case AV_OPT_TYPE_FLOAT:
      *(float *)dst = num * intnum / den;
      break;
  case AV_OPT_TYPE_DOUBLE:
      *(double    *)dst = num * intnum / den;
      break;
  case AV_OPT_TYPE_RATIONAL:
  case AV_OPT_TYPE_VIDEO_RATE:
      if ((int) num == num)
          *(AVRational *)dst = (AVRational) { num *intnum, den };
      else
          *(AVRational *)dst = double_to_rational(num * intnum / den);
      break;
  default:
      return AVERROR(EINVAL)(-(22));
  }
  return 0;
345}

347static int hexchar2int(char c) {
  if (c >= '0' && c <= '9')
      return c - '0';
  if (c >= 'a' && c <= 'f')
      return c - 'a' + 10;
  if (c >= 'A' && c <= 'F')
      return c - 'A' + 10;
  return -1;
355}

357static int set_string_binary(void *obj, const AVOption *o, const char *val, uint8_t **dst)
358{
  int *lendst = (int *)(dst + 1);
  uint8_t *bin, *ptr;
  int len;

  av_freep(dst);
  *lendst = 0;

  if (!val || !(len = strlen(val)))
      return 0;

  if (len & 1)
      return AVERROR(EINVAL)(-(22));
  len /= 2;

  ptr = bin = av_malloc(len);
  if (!ptr)
      return AVERROR(ENOMEM)(-(12));
  while (*val) {
      int a = hexchar2int(*val++);
      int b = hexchar2int(*val++);
      if (a < 0 || b < 0) {
          av_free(bin);
          return AVERROR(EINVAL)(-(22));
      }
      *ptr++ = (a << 4) | b;
  }
  *dst    = bin;
  *lendst = len;

  return 0;
389}

391static int set_string(void *obj, const AVOption *o, const char *val, uint8_t **dst)
392{
  av_freep(dst);
  if (!val)
      return 0;
  *dst = av_strdup(val);
  return *dst ? 0 : AVERROR(ENOMEM)(-(12));
398}

400#define DEFAULT_NUMVAL(opt)((opt->type == AV_OPT_TYPE_INT64 || opt->type == AV_OPT_TYPE_UINT64
 || opt->type == AV_OPT_TYPE_CONST || opt->type == AV_OPT_TYPE_FLAGS
 || opt->type == AV_OPT_TYPE_UINT || opt->type == AV_OPT_TYPE_INT
) ? opt->default_val.i64 : opt->default_val.dbl) ((opt->type == AV_OPT_TYPE_INT64 || \
                            opt->type == AV_OPT_TYPE_UINT64 || \
                            opt->type == AV_OPT_TYPE_CONST || \
                            opt->type == AV_OPT_TYPE_FLAGS || \
                            opt->type == AV_OPT_TYPE_UINT  || \
                            opt->type == AV_OPT_TYPE_INT)     \
                           ? opt->default_val.i64             \
                           : opt->default_val.dbl)

409static int set_string_number(void *obj, void *target_obj, const AVOption *o, const char *val, void *dst)
410{
  const enum AVOptionType type = TYPE_BASE(o->type)((o->type) & ~AV_OPT_TYPE_FLAG_ARRAY);
  int ret = 0;

  if (type == AV_OPT_TYPE_RATIONAL || type == AV_OPT_TYPE_VIDEO_RATE) {
      int num, den;
      char c;
      if (sscanf(val, "%d%*1[:/]%d%c", &num, &den, &c) == 2) {
          if ((ret = write_number(obj, o, dst, 1, den, num)) >= 0)
              return ret;
          ret = 0;
      }
  }

  for (;;) {
      int i = 0;
      char buf[256];
      int cmd = 0;
      double d;
      int64_t intnum = 1;

      if (type == AV_OPT_TYPE_FLAGS) {
          if (*val == '+' || *val == '-')
              cmd = *(val++);
          for (; i < sizeof(buf) - 1 && val[i] && val[i] != '+' && val[i] != '-'; i++)
              buf[i] = val[i];
          buf[i] = 0;
      }

      {
          int res;
          int ci = 0;
          double const_values[64];
          const char * const_names[64];
          int search_flags = (o->flags & AV_OPT_FLAG_CHILD_CONSTS(1 << 18)) ? AV_OPT_SEARCH_CHILDREN(1 << 0) : 0;
          const AVOption *o_named = av_opt_find(target_obj, i ? buf : val, o->unit, 0, search_flags);
          if (o_named && o_named->type == AV_OPT_TYPE_CONST) {
              d = DEFAULT_NUMVAL(o_named)((o_named->type == AV_OPT_TYPE_INT64 || o_named->type ==
 AV_OPT_TYPE_UINT64 || o_named->type == AV_OPT_TYPE_CONST ||
 o_named->type == AV_OPT_TYPE_FLAGS || o_named->type ==
 AV_OPT_TYPE_UINT || o_named->type == AV_OPT_TYPE_INT) ? o_named
->default_val.i64 : o_named->default_val.dbl);
              if (o_named->flags & AV_OPT_FLAG_DEPRECATED(1 << 17))
                  av_log(obj, AV_LOG_WARNING24, "The \"%s\" option is deprecated: %s\n",
                         o_named->name, o_named->help);
          } else {
              if (o->unit) {
                  for (o_named = NULL((void*)0); o_named = av_opt_next(target_obj, o_named); ) {
                      if (o_named->type == AV_OPT_TYPE_CONST &&
                          o_named->unit &&
                          !strcmp(o_named->unit, o->unit)) {
                          if (ci + 6 >= FF_ARRAY_ELEMS(const_values)(sizeof(const_values) / sizeof((const_values)[0]))) {
                              av_log(obj, AV_LOG_ERROR16, "const_values array too small for %s\n", o->unit);
                              return AVERROR_PATCHWELCOME(-(int)(('P') | (('A') << 8) | (('W') << 16) | ((
unsigned)('E') << 24)));
                          }
                          const_names [ci  ] = o_named->name;
                          const_values[ci++] = DEFAULT_NUMVAL(o_named)((o_named->type == AV_OPT_TYPE_INT64 || o_named->type ==
 AV_OPT_TYPE_UINT64 || o_named->type == AV_OPT_TYPE_CONST ||
 o_named->type == AV_OPT_TYPE_FLAGS || o_named->type ==
 AV_OPT_TYPE_UINT || o_named->type == AV_OPT_TYPE_INT) ? o_named
->default_val.i64 : o_named->default_val.dbl);
                      }
                  }
              }
              const_names [ci  ] = "default";
              const_values[ci++] = DEFAULT_NUMVAL(o)((o->type == AV_OPT_TYPE_INT64 || o->type == AV_OPT_TYPE_UINT64
 || o->type == AV_OPT_TYPE_CONST || o->type == AV_OPT_TYPE_FLAGS
 || o->type == AV_OPT_TYPE_UINT || o->type == AV_OPT_TYPE_INT
) ? o->default_val.i64 : o->default_val.dbl);
              const_names [ci  ] = "max";
              const_values[ci++] = o->max;
              const_names [ci  ] = "min";
              const_values[ci++] = o->min;
              const_names [ci  ] = "none";
              const_values[ci++] = 0;
              const_names [ci  ] = "all";
              const_values[ci++] = ~0;
              const_names [ci] = NULL((void*)0);
              const_values[ci] = 0;

              res = av_expr_parse_and_eval(&d, i ? buf : val, const_names,
                                          const_values, NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), 0, obj);
              if (res < 0) {
                  av_log(obj, AV_LOG_ERROR16, "Unable to parse \"%s\" option value \"%s\"\n", o->name, val);
                  return res;
              }
          }
      }
      if (type == AV_OPT_TYPE_FLAGS) {
          intnum = *(unsigned int*)dst;
          if (cmd == '+')
              d = intnum | (int64_t)d;
          else if (cmd == '-')
              d = intnum &~(int64_t)d;
      }

      if ((ret = write_number(obj, o, dst, d, 1, 1)) < 0)
          return ret;
      val += i;
      if (!i || !*val)
          return 0;
  }
501}

503static int set_string_image_size(void *obj, const AVOption *o, const char *val, int *dst)
504{
  int ret;

  if (!val || !strcmp(val, "none")) {
      dst[0] =
      dst[1] = 0;
      return 0;
  }
  ret = av_parse_video_size(dst, dst + 1, val);
  if (ret < 0)
      av_log(obj, AV_LOG_ERROR16, "Unable to parse \"%s\" option value \"%s\" as image size\n", o->name, val);
  return ret;
516}

518static int set_string_video_rate(void *obj, const AVOption *o, const char *val, AVRational *dst)
519{
  int ret = av_parse_video_rate(dst, val);
  if (ret < 0)
      av_log(obj, AV_LOG_ERROR16, "Unable to parse \"%s\" option value \"%s\" as video rate\n", o->name, val);
  return ret;
524}

526static int set_string_color(void *obj, const AVOption *o, const char *val, uint8_t *dst)
527{
  int ret;

  if (!val) {
      return 0;
  } else {
      ret = av_parse_color(dst, val, -1, obj);
      if (ret < 0)
          av_log(obj, AV_LOG_ERROR16, "Unable to parse \"%s\" option value \"%s\" as color\n", o->name, val);
      return ret;
  }
  return 0;
539}

541static const char *get_bool_name(int val)
542{
  if (val < 0)
      return "auto";
  return val ? "true" : "false";
546}

548static int set_string_bool(void *obj, const AVOption *o, const char *val, int *dst)
549{
  int n;

  if (!val)
      return 0;

  if (!strcmp(val, "auto")) {
      n = -1;
  } else if (av_match_name(val, "true,y,yes,enable,enabled,on")) {
      n = 1;
  } else if (av_match_name(val, "false,n,no,disable,disabled,off")) {
      n = 0;
  } else {
      char *end = NULL((void*)0);
      n = strtol(val, &end, 10);
      if (val + strlen(val) != end)
          goto fail;
  }

  if (n < o->min || n > o->max)
      goto fail;

  *dst = n;
  return 0;

574fail:
  av_log(obj, AV_LOG_ERROR16, "Unable to parse \"%s\" option value \"%s\" as boolean\n", o->name, val);
  return AVERROR(EINVAL)(-(22));
577}

579static int set_string_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst,
                        int fmt_nb, int ((*get_fmt)(const char *)), const char *desc)
581{
  int fmt, min, max;

  if (!val || !strcmp(val, "none")) {
      fmt = -1;
  } else {
      fmt = get_fmt(val);
      if (fmt == -1) {
          char *tail;
          fmt = strtol(val, &tail, 0);
          if (*tail || (unsigned)fmt >= fmt_nb) {
              av_log(obj, AV_LOG_ERROR16,
                     "Unable to parse \"%s\" option value \"%s\" as %s\n", o->name, val, desc);
              return AVERROR(EINVAL)(-(22));
          }
      }
  }

  min = FFMAX(o->min, -1)((o->min) > (-1) ? (o->min) : (-1));
  max = FFMIN(o->max, fmt_nb-1)((o->max) > (fmt_nb-1) ? (fmt_nb-1) : (o->max));

  // hack for compatibility with old ffmpeg
  if(min == 0 && max == 0) {
      min = -1;
      max = fmt_nb-1;
  }

  if (fmt < min || fmt > max) {
      av_log(obj, AV_LOG_ERROR16,
             "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
             fmt, o->name, desc, min, max);
      return AVERROR(ERANGE)(-(34));
  }

  *(int *)dst = fmt;
  return 0;
617}

619static int get_pix_fmt(const char *name)
620{
  return av_get_pix_fmt(name);
622}

624static int set_string_pixel_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst)
625{
  return set_string_fmt(obj, o, val, dst,
                        AV_PIX_FMT_NB, get_pix_fmt, "pixel format");
628}

630static int get_sample_fmt(const char *name)
631{
  return av_get_sample_fmt(name);
633}

635static int set_string_sample_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst)
636{
  return set_string_fmt(obj, o, val, dst,
                        AV_SAMPLE_FMT_NB, get_sample_fmt, "sample format");
639}

641static int set_string_dict(void *obj, const AVOption *o, const char *val, uint8_t **dst)
642{
  AVDictionary *options = NULL((void*)0);

  if (val) {
      int ret = av_dict_parse_string(&options, val, "=", ":", 0);
      if (ret < 0) {
          av_dict_free(&options);
          return ret;
      }
  }

  av_dict_free((AVDictionary **)dst);
  *dst = (uint8_t *)options;

  return 0;
657}

659static int set_string_channel_layout(void *obj, const AVOption *o,
                                   const char *val, void *dst)
661{
  AVChannelLayout *channel_layout = dst;
  av_channel_layout_uninit(channel_layout);
  if (!val)
      return 0;
  return av_channel_layout_from_string(channel_layout, val);
667}

669static int opt_set_elem(void *obj, void *target_obj, const AVOption *o,
                      const char *val, void *dst)
671{
  const enum AVOptionType type = TYPE_BASE(o->type)((o->type) & ~AV_OPT_TYPE_FLAG_ARRAY);
  int ret;

  if (!val && (type != AV_OPT_TYPE_STRING &&
               type != AV_OPT_TYPE_PIXEL_FMT && type != AV_OPT_TYPE_SAMPLE_FMT &&
               type != AV_OPT_TYPE_IMAGE_SIZE &&
               type != AV_OPT_TYPE_DURATION && type != AV_OPT_TYPE_COLOR &&
               type != AV_OPT_TYPE_BOOL))
      return AVERROR(EINVAL)(-(22));

  switch (type) {
  case AV_OPT_TYPE_BOOL:
      return set_string_bool(obj, o, val, dst);
  case AV_OPT_TYPE_STRING:
      return set_string(obj, o, val, dst);
  case AV_OPT_TYPE_BINARY:
      return set_string_binary(obj, o, val, dst);
  case AV_OPT_TYPE_FLAGS:
  case AV_OPT_TYPE_INT:
  case AV_OPT_TYPE_UINT:
  case AV_OPT_TYPE_INT64:
  case AV_OPT_TYPE_UINT64:
  case AV_OPT_TYPE_FLOAT:
  case AV_OPT_TYPE_DOUBLE:
  case AV_OPT_TYPE_RATIONAL:
      return set_string_number(obj, target_obj, o, val, dst);
  case AV_OPT_TYPE_IMAGE_SIZE:
      return set_string_image_size(obj, o, val, dst);
  case AV_OPT_TYPE_VIDEO_RATE: {
      AVRational tmp;
      ret = set_string_video_rate(obj, o, val, &tmp);
      if (ret < 0)
          return ret;
      return write_number(obj, o, dst, 1, tmp.den, tmp.num);
  }
  case AV_OPT_TYPE_PIXEL_FMT:
      return set_string_pixel_fmt(obj, o, val, dst);
  case AV_OPT_TYPE_SAMPLE_FMT:
      return set_string_sample_fmt(obj, o, val, dst);
  case AV_OPT_TYPE_DURATION:
      {
          int64_t usecs = 0;
          if (val) {
              if ((ret = av_parse_time(&usecs, val, 1)) < 0) {
                  av_log(obj, AV_LOG_ERROR16, "Unable to parse \"%s\" option value \"%s\" as duration\n", o->name, val);
                  return ret;
              }
          }
          if (usecs < o->min || usecs > o->max) {
              av_log(obj, AV_LOG_ERROR16, "Value %f for parameter '%s' out of range [%g - %g]\n",
                     usecs / 1000000.0, o->name, o->min / 1000000.0, o->max / 1000000.0);
              return AVERROR(ERANGE)(-(34));
          }
          *(int64_t *)dst = usecs;
          return 0;
      }
  case AV_OPT_TYPE_COLOR:
      return set_string_color(obj, o, val, dst);
  case AV_OPT_TYPE_CHLAYOUT:
      ret = set_string_channel_layout(obj, o, val, dst);
      if (ret < 0) {
          av_log(obj, AV_LOG_ERROR16, "Unable to parse \"%s\" option value \"%s\" as channel layout\n", o->name, val);
          ret = AVERROR(EINVAL)(-(22));
      }
      return ret;
  case AV_OPT_TYPE_DICT:
      return set_string_dict(obj, o, val, dst);
  }

  av_log(obj, AV_LOG_ERROR16, "Invalid option type.\n");
  return AVERROR(EINVAL)(-(22));
743}

745static int opt_set_array(void *obj, void *target_obj, const AVOption *o,
                       const char *val, void *dst)
747{
  const AVOptionArrayDef *arr = o->default_val.arr;
  const size_t      elem_size = opt_type_desc[TYPE_BASE(o->type)((o->type) & ~AV_OPT_TYPE_FLAG_ARRAY)].size;
  const uint8_t           sep = opt_array_sep(o);
  uint8_t                *str = NULL((void*)0);

  void       *elems = NULL((void*)0);
  unsigned nb_elems = 0;
  int ret;

  if (val && *val) {
      str = av_malloc(strlen(val) + 1);
      if (!str)
          return AVERROR(ENOMEM)(-(12));
  }

  // split and unescape the string
  while (val && *val) {
      uint8_t *p = str;
      void *tmp;

      if (arr && arr->size_max && nb_elems >= arr->size_max) {
          av_log(obj, AV_LOG_ERROR16,
                 "Cannot assign more than %u elements to array option %s\n",
                 arr->size_max, o->name);
          ret = AVERROR(EINVAL)(-(22));
          goto fail;
      }

      for (; *val; val++, p++) {
          if (*val == '\\' && val[1])
              val++;
          else if (*val == sep) {
              val++;
              break;
          }
          *p = *val;
      }
      *p = 0;

      tmp = av_realloc_array(elems, nb_elems + 1, elem_size);
      if (!tmp) {
          ret = AVERROR(ENOMEM)(-(12));
          goto fail;
      }
      elems = tmp;

      tmp = opt_array_pelem(o, elems, nb_elems);
      memset(tmp, 0, elem_size);

      ret = opt_set_elem(obj, target_obj, o, str, tmp);
      if (ret < 0)
          goto fail;
      nb_elems++;
  }
  av_freep(&str);

  opt_free_array(o, dst, opt_array_pcount(dst));

  if (arr && nb_elems < arr->size_min) {
      av_log(obj, AV_LOG_ERROR16,
             "Cannot assign fewer than %u elements to array option %s\n",
             arr->size_min, o->name);
      ret = AVERROR(EINVAL)(-(22));
      goto fail;
  }

  *((void **)dst)        = elems;
  *opt_array_pcount(dst) = nb_elems;

  return 0;
818fail:
  av_freep(&str);
  opt_free_array(o, &elems, &nb_elems);
  return ret;
822}

824int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
825{
  void *dst, *target_obj;
  const AVOption *o;
  int ret;

  ret = opt_set_init(obj, name, search_flags, 0, &target_obj, &o, &dst);
  if (ret < 0)
      return ret;

  return ((o->type & AV_OPT_TYPE_FLAG_ARRAY) ?
          opt_set_array : opt_set_elem)(obj, target_obj, o, val, dst);
836}

838#define OPT_EVAL_NUMBER(name, opttype, vartype)int av_opt_eval_name(void *obj, const AVOption *o, const char
 *val, vartype *name_out) { if (!o || o->type != opttype ||
 o->flags & (1 << 7)) return (-(22)); return set_string_number
(obj, obj, o, val, name_out); }                         \
839int av_opt_eval_ ## name(void *obj, const AVOption *o,                  \
                       const char *val, vartype *name ## _out)        \
841{                                                                       \
  if (!o || o->type != opttype || o->flags & AV_OPT_FLAG_READONLY(1 << 7))    \
      return AVERROR(EINVAL)(-(22));                                         \
  return set_string_number(obj, obj, o, val, name ## _out);           \
845}

847OPT_EVAL_NUMBER(flags,  AV_OPT_TYPE_FLAGS,    int)int av_opt_eval_flags(void *obj, const AVOption *o, const char
 *val, int *flags_out) { if (!o || o->type != AV_OPT_TYPE_FLAGS
 || o->flags & (1 << 7)) return (-(22)); return set_string_number
(obj, obj, o, val, flags_out); }
848OPT_EVAL_NUMBER(int,    AV_OPT_TYPE_INT,      int)int av_opt_eval_int(void *obj, const AVOption *o, const char *
val, int *int_out) { if (!o || o->type != AV_OPT_TYPE_INT ||
 o->flags & (1 << 7)) return (-(22)); return set_string_number
(obj, obj, o, val, int_out); }
849OPT_EVAL_NUMBER(uint,   AV_OPT_TYPE_UINT,     unsigned)int av_opt_eval_uint(void *obj, const AVOption *o, const char
 *val, unsigned *uint_out) { if (!o || o->type != AV_OPT_TYPE_UINT
 || o->flags & (1 << 7)) return (-(22)); return set_string_number
(obj, obj, o, val, uint_out); }
850OPT_EVAL_NUMBER(int64,  AV_OPT_TYPE_INT64,    int64_t)int av_opt_eval_int64(void *obj, const AVOption *o, const char
 *val, int64_t *int64_out) { if (!o || o->type != AV_OPT_TYPE_INT64
 || o->flags & (1 << 7)) return (-(22)); return set_string_number
(obj, obj, o, val, int64_out); }
851OPT_EVAL_NUMBER(float,  AV_OPT_TYPE_FLOAT,    float)int av_opt_eval_float(void *obj, const AVOption *o, const char
 *val, float *float_out) { if (!o || o->type != AV_OPT_TYPE_FLOAT
 || o->flags & (1 << 7)) return (-(22)); return set_string_number
(obj, obj, o, val, float_out); }
852OPT_EVAL_NUMBER(double, AV_OPT_TYPE_DOUBLE,   double)int av_opt_eval_double(void *obj, const AVOption *o, const char
 *val, double *double_out) { if (!o || o->type != AV_OPT_TYPE_DOUBLE
 || o->flags & (1 << 7)) return (-(22)); return set_string_number
(obj, obj, o, val, double_out); }
853OPT_EVAL_NUMBER(q,      AV_OPT_TYPE_RATIONAL, AVRational)int av_opt_eval_q(void *obj, const AVOption *o, const char *val
, AVRational *q_out) { if (!o || o->type != AV_OPT_TYPE_RATIONAL
 || o->flags & (1 << 7)) return (-(22)); return set_string_number
(obj, obj, o, val, q_out); }

855static int set_number(void *obj, const char *name, double num, int den, int64_t intnum,
                    int search_flags, int require_type)
857{
  void *dst;
  const AVOption *o;
  int ret;

  ret = opt_set_init(obj, name, search_flags, require_type, NULL((void*)0), &o, &dst);
  if (ret < 0)
      return ret;

  return write_number(obj, o, dst, num, den, intnum);
867}

869int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
870{
  return set_number(obj, name, 1, 1, val, search_flags, 0);
872}

874int av_opt_set_double(void *obj, const char *name, double val, int search_flags)
875{
  return set_number(obj, name, val, 1, 1, search_flags, 0);
877}

879int av_opt_set_q(void *obj, const char *name, AVRational val, int search_flags)
880{
  return set_number(obj, name, val.num, val.den, 1, search_flags, 0);
882}

884int av_opt_set_bin(void *obj, const char *name, const uint8_t *val, int len, int search_flags)
885{
  uint8_t *ptr;
  uint8_t **dst;
  int *lendst;
  int ret;

  ret = opt_set_init(obj, name, search_flags, AV_OPT_TYPE_BINARY,
                     NULL((void*)0), NULL((void*)0), (void**)&dst);
  if (ret < 0)
      return ret;

  ptr = len ? av_malloc(len) : NULL((void*)0);
  if (len && !ptr)
      return AVERROR(ENOMEM)(-(12));

  lendst = (int *)(dst + 1);

  av_free(*dst);
  *dst    = ptr;
  *lendst = len;
  if (len)
      memcpy(ptr, val, len);

  return 0;
909}

911int av_opt_set_image_size(void *obj, const char *name, int w, int h, int search_flags)
912{
  const AVOption *o;
  int *dst;
  int ret;

  ret = opt_set_init(obj, name, search_flags, AV_OPT_TYPE_IMAGE_SIZE,
                     NULL((void*)0), &o, (void**)&dst);
  if (ret < 0)
      return ret;

  if (w<0 || h<0) {
      av_log(obj, AV_LOG_ERROR16,
             "Invalid negative size value %dx%d for size '%s'\n", w, h, o->name);
      return AVERROR(EINVAL)(-(22));
  }

  dst[0] = w;
  dst[1] = h;

  return 0;
932}

934int av_opt_set_video_rate(void *obj, const char *name, AVRational val, int search_flags)
935{
  return set_number(obj, name, val.num, val.den, 1, search_flags, AV_OPT_TYPE_VIDEO_RATE);
937}

939static int set_format(void *obj, const char *name, int fmt, int search_flags,
                    enum AVOptionType type, const char *desc, int nb_fmts)
941{
  const AVOption *o;
  int *dst;
  int min, max, ret;

  ret = opt_set_init(obj, name, search_flags, type, NULL((void*)0), &o, (void**)&dst);
  if (ret < 0)
      return ret;

  min = FFMAX(o->min, -1)((o->min) > (-1) ? (o->min) : (-1));
  max = FFMIN(o->max, nb_fmts-1)((o->max) > (nb_fmts-1) ? (nb_fmts-1) : (o->max));

  if (fmt < min || fmt > max) {
      av_log(obj, AV_LOG_ERROR16,
             "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
             fmt, name, desc, min, max);
      return AVERROR(ERANGE)(-(34));
  }
  *dst = fmt;
  return 0;
961}

963int av_opt_set_pixel_fmt(void *obj, const char *name, enum AVPixelFormat fmt, int search_flags)
964{
  return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_PIXEL_FMT, "pixel", AV_PIX_FMT_NB);
966}

968int av_opt_set_sample_fmt(void *obj, const char *name, enum AVSampleFormat fmt, int search_flags)
969{
  return set_format(obj, name, fmt, search_flags, AV_OPT_TYPE_SAMPLE_FMT, "sample", AV_SAMPLE_FMT_NB);
971}

973int av_opt_set_dict_val(void *obj, const char *name, const AVDictionary *val,
                      int search_flags)
975{
  AVDictionary **dst;
  int ret;

  ret = opt_set_init(obj, name, search_flags, AV_OPT_TYPE_DICT, NULL((void*)0), NULL((void*)0),
                     (void**)&dst);
  if (ret < 0)
      return ret;

  av_dict_free(dst);

  return av_dict_copy(dst, val, 0);
987}

989int av_opt_set_chlayout(void *obj, const char *name,
                      const AVChannelLayout *channel_layout,
                      int search_flags)
992{
  AVChannelLayout *dst;
  int ret;

  ret = opt_set_init(obj, name, search_flags, AV_OPT_TYPE_CHLAYOUT, NULL((void*)0), NULL((void*)0),
                     (void**)&dst);
  if (ret < 0)
      return ret;

  return av_channel_layout_copy(dst, channel_layout);
1002}

1004static void format_duration(char *buf, size_t size, int64_t d)
1005{
  char *e;

  av_assert0(size >= 25)do { if (!(size >= 25)) { av_log(((void*)0), 0, "Assertion %s failed at %s:%d\n"
, "size >= 25", "/root/firefox-clang/media/ffvpx/libavutil/opt.c"
, 1008); abort(); } } while (0);
  if (d < 0 && d != INT64_MIN(-9223372036854775807L -1)) {
      *(buf++) = '-';
      size--;
      d = -d;
  }
  if (d == INT64_MAX(9223372036854775807L))
      snprintf(buf, size, "INT64_MAX");
  else if (d == INT64_MIN(-9223372036854775807L -1))
      snprintf(buf, size, "INT64_MIN");
  else if (d > (int64_t)3600*1000000)
      snprintf(buf, size, "%"PRId64"l" "d"":%02d:%02d.%06d", d / 3600000000,
               (int)((d / 60000000) % 60),
               (int)((d / 1000000) % 60),
               (int)(d % 1000000));
  else if (d > 60*1000000)
      snprintf(buf, size, "%d:%02d.%06d",
               (int)(d / 60000000),
               (int)((d / 1000000) % 60),
               (int)(d % 1000000));
  else
      snprintf(buf, size, "%d.%06d",
               (int)(d / 1000000),
               (int)(d % 1000000));
  e = buf + strlen(buf);
  while (e > buf && e[-1] == '0')
      *(--e) = 0;
  if (e > buf && e[-1] == '.')
      *(--e) = 0;
1037}

1039static int opt_get_elem(const AVOption *o, uint8_t **pbuf, size_t buf_len,
                      const void *dst, int search_flags)
1041{
  int ret;

  switch (TYPE_BASE(o->type)((o->type) & ~AV_OPT_TYPE_FLAG_ARRAY)) {
27
←
Control jumps to 'case AV_OPT_TYPE_BINARY:'  at line 1086→
  case AV_OPT_TYPE_BOOL:
      ret = snprintf(*pbuf, buf_len, "%s", get_bool_name(*(int *)dst));
      break;
  case AV_OPT_TYPE_FLAGS:
      ret = snprintf(*pbuf, buf_len, "0x%08X", *(int *)dst);
      break;
  case AV_OPT_TYPE_INT:
      ret = snprintf(*pbuf, buf_len, "%d", *(int *)dst);
      break;
  case AV_OPT_TYPE_UINT:
      ret = snprintf(*pbuf, buf_len, "%u", *(unsigned *)dst);
      break;
  case AV_OPT_TYPE_INT64:
      ret = snprintf(*pbuf, buf_len, "%"PRId64"l" "d", *(int64_t *)dst);
      break;
  case AV_OPT_TYPE_UINT64:
      ret = snprintf(*pbuf, buf_len, "%"PRIu64"l" "u", *(uint64_t *)dst);
      break;
  case AV_OPT_TYPE_FLOAT:
      ret = snprintf(*pbuf, buf_len, "%f", *(float *)dst);
      break;
  case AV_OPT_TYPE_DOUBLE:
      ret = snprintf(*pbuf, buf_len, "%f", *(double *)dst);
      break;
  case AV_OPT_TYPE_VIDEO_RATE:
  case AV_OPT_TYPE_RATIONAL:
      ret = snprintf(*pbuf, buf_len, "%d/%d", ((AVRational *)dst)->num, ((AVRational *)dst)->den);
      break;
  case AV_OPT_TYPE_CONST:
      ret = snprintf(*pbuf, buf_len, "%"PRId64"l" "d", o->default_val.i64);
      break;
  case AV_OPT_TYPE_STRING:
      if (*(uint8_t **)dst) {
          *pbuf = av_strdup(*(uint8_t **)dst);
      } else if (search_flags & AV_OPT_ALLOW_NULL(1 << 2)) {
          *pbuf = NULL((void*)0);
          return 0;
      } else {
          *pbuf = av_strdup("");
      }
      return *pbuf ? 0 : AVERROR(ENOMEM)(-(12));
  case AV_OPT_TYPE_BINARY: {
      const uint8_t *bin;
      int len;

      if (!*(uint8_t **)dst && (search_flags & AV_OPT_ALLOW_NULL(1 << 2))) {
28
←
Assuming pointer value is null→
29
←
Taking false branch→
          *pbuf = NULL((void*)0);
          return 0;
      }
      len = *(int *)(((uint8_t *)dst) + sizeof(uint8_t *));
      if ((uint64_t)len * 2 + 1 > INT_MAX2147483647)
30
←
Assuming the condition is false→
31
←
Taking false branch→
          return AVERROR(EINVAL)(-(22));
      if (!(*pbuf = av_malloc(len * 2 + 1)))
32
←
Assuming  is non-null→
33
←
Taking false branch→
          return AVERROR(ENOMEM)(-(12));
      if (!len) {
34
←
Assuming 'len' is not equal to 0→
35
←
Taking false branch→
          *pbuf[0] = '\0';
          return 0;
      }
      bin = *(uint8_t **)dst;
36
←
Null pointer value stored to 'bin'→
      for (int i = 0; i < len; i++)
37
←
Assuming 'i' is < 'len'→
38
←
Loop condition is true.  Entering loop body→
          snprintf(*pbuf + i * 2, 3, "%02X", bin[i]);
39
←
Array access (from variable 'bin') results in a null pointer dereference
      return 0;
  }
  case AV_OPT_TYPE_IMAGE_SIZE:
      ret = snprintf(*pbuf, buf_len, "%dx%d", ((int *)dst)[0], ((int *)dst)[1]);
      break;
  case AV_OPT_TYPE_PIXEL_FMT:
      ret = snprintf(*pbuf, buf_len, "%s", (char *)av_x_if_null(av_get_pix_fmt_name(*(enum AVPixelFormat *)dst), "none"));
      break;
  case AV_OPT_TYPE_SAMPLE_FMT:
      ret = snprintf(*pbuf, buf_len, "%s", (char *)av_x_if_null(av_get_sample_fmt_name(*(enum AVSampleFormat *)dst), "none"));
      break;
  case AV_OPT_TYPE_DURATION: {
      int64_t i64 = *(int64_t *)dst;
      format_duration(*pbuf, buf_len, i64);
      ret = strlen(*pbuf); // no overflow possible, checked by an assert
      break;
  }
  case AV_OPT_TYPE_COLOR:
      ret = snprintf(*pbuf, buf_len, "0x%02x%02x%02x%02x",
                     (int)((uint8_t *)dst)[0], (int)((uint8_t *)dst)[1],
                     (int)((uint8_t *)dst)[2], (int)((uint8_t *)dst)[3]);
      break;
  case AV_OPT_TYPE_CHLAYOUT:
      ret = av_channel_layout_describe(dst, *pbuf, buf_len);
      break;
  case AV_OPT_TYPE_DICT:
      if (!*(AVDictionary **)dst && (search_flags & AV_OPT_ALLOW_NULL(1 << 2))) {
          *pbuf = NULL((void*)0);
          return 0;
      }
      return av_dict_get_string(*(AVDictionary **)dst, (char **)pbuf, '=', ':');
  default:
      return AVERROR(EINVAL)(-(22));
  }

  return ret;
1142}

1144static int opt_get_array(const AVOption *o, void *dst, uint8_t **out_val)
1145{
  const unsigned count = *opt_array_pcount(dst);
  const uint8_t    sep = opt_array_sep(o);

  uint8_t *str     = NULL((void*)0);
  size_t   str_len = 0;
  int ret;

  *out_val = NULL((void*)0);

  for (unsigned i = 0; i < count; i++) {
24
←
Assuming 'i' is < 'count'→
25
←
Loop condition is true.  Entering loop body→
      uint8_t buf[128], *out = buf;
      size_t out_len;

      ret = opt_get_elem(o, &out, sizeof(buf),
26
←
Calling 'opt_get_elem'→
                         opt_array_pelem(o, *(void **)dst, i), 0);
      if (ret < 0)
          goto fail;

      out_len = strlen(out);
      if (out_len > SIZE_MAX(18446744073709551615UL) / 2 - !!i ||
          !!i + out_len * 2 > SIZE_MAX(18446744073709551615UL) - str_len - 1) {
          ret = AVERROR(ERANGE)(-(34));
          goto fail;
      }

      //                         terminator     escaping  separator
      //                                ↓             ↓     ↓
      ret = av_reallocp(&str, str_len + 1 + out_len * 2 + !!i);
      if (ret < 0)
          goto fail;

      // add separator if needed
      if (i)
          str[str_len++] = sep;

      // escape the element
      for (unsigned j = 0; j < out_len; j++) {
          uint8_t val = out[j];
          if (val == sep || val == '\\')
              str[str_len++] = '\\';
          str[str_len++] = val;
      }
      str[str_len] = 0;

1190fail:
      if (out != buf)
          av_freep(&out);
      if (ret < 0) {
          av_freep(&str);
          return ret;
      }
  }

  *out_val = str;

  return 0;
1202}

1204int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val)
1205{
  void *dst, *target_obj;
  const AVOption *o = av_opt_find2(obj, name, NULL((void*)0), 0, search_flags, &target_obj);
  uint8_t *out, buf[128];
  int ret;

  if (!o || !target_obj || (o->offset<=0 && o->type != AV_OPT_TYPE_CONST))
      return AVERROR_OPTION_NOT_FOUND(-(int)((0xF8) | (('O') << 8) | (('P') << 16) | (
(unsigned)('T') << 24)));

  if (o->flags & AV_OPT_FLAG_DEPRECATED(1 << 17))
      av_log(obj, AV_LOG_WARNING24, "The \"%s\" option is deprecated: %s\n", name, o->help);

  dst = (uint8_t *)target_obj + o->offset;

  if (o->type & AV_OPT_TYPE_FLAG_ARRAY) {
      ret = opt_get_array(o, dst, out_val);
      if (ret < 0)
          return ret;
      if (!*out_val && !(search_flags & AV_OPT_ALLOW_NULL(1 << 2))) {
          *out_val = av_strdup("");
          if (!*out_val)
             return AVERROR(ENOMEM)(-(12));
      }
      return 0;
  }

  buf[0] = 0;
  out = buf;
  ret = opt_get_elem(o, &out, sizeof(buf), dst, search_flags);
  if (ret < 0)
      return ret;
  if (out != buf) {
      *out_val = out;
      return 0;
  }

  if (ret >= sizeof(buf))
      return AVERROR(EINVAL)(-(22));
  *out_val = av_strdup(out);
  return *out_val ? 0 : AVERROR(ENOMEM)(-(12));
1245}

1247static int get_number(void *obj, const char *name, double *num, int *den, int64_t *intnum,
                    int search_flags)
1249{
  void *dst, *target_obj;
  const AVOption *o = av_opt_find2(obj, name, NULL((void*)0), 0, search_flags, &target_obj);
  if (!o || !target_obj)
      return AVERROR_OPTION_NOT_FOUND(-(int)((0xF8) | (('O') << 8) | (('P') << 16) | (
(unsigned)('T') << 24)));
  if (o->type & AV_OPT_TYPE_FLAG_ARRAY)
      return AVERROR(EINVAL)(-(22));

  dst = ((uint8_t *)target_obj) + o->offset;

  return read_number(o, dst, num, den, intnum);
1260}

1262int av_opt_get_int(void *obj, const char *name, int search_flags, int64_t *out_val)
1263{
  int64_t intnum = 1;
  double num = 1;
  int ret, den = 1;

  if ((ret = get_number(obj, name, &num, &den, &intnum, search_flags)) < 0)
      return ret;
  if (num == den)
      *out_val = intnum;
  else
      *out_val = num * intnum / den;
  return 0;
1275}

1277int av_opt_get_double(void *obj, const char *name, int search_flags, double *out_val)
1278{
  int64_t intnum = 1;
  double num = 1;
  int ret, den = 1;

  if ((ret = get_number(obj, name, &num, &den, &intnum, search_flags)) < 0)
      return ret;
  *out_val = num * intnum / den;
  return 0;
1287}

1289int av_opt_get_q(void *obj, const char *name, int search_flags, AVRational *out_val)
1290{
  int64_t intnum = 1;
  double num = 1;
  int ret, den = 1;

  if ((ret = get_number(obj, name, &num, &den, &intnum, search_flags)) < 0)
      return ret;

  if (num == 1.0 && (int)intnum == intnum)
      *out_val = (AVRational){intnum, den};
  else
      *out_val = double_to_rational(num*intnum/den);
  return 0;
1303}

1305int av_opt_get_image_size(void *obj, const char *name, int search_flags, int *w_out, int *h_out)
1306{
  void *dst, *target_obj;
  const AVOption *o = av_opt_find2(obj, name, NULL((void*)0), 0, search_flags, &target_obj);
  if (!o || !target_obj)
      return AVERROR_OPTION_NOT_FOUND(-(int)((0xF8) | (('O') << 8) | (('P') << 16) | (
(unsigned)('T') << 24)));
  if (o->type != AV_OPT_TYPE_IMAGE_SIZE) {
      av_log(obj, AV_LOG_ERROR16,
             "The value for option '%s' is not a image size.\n", name);
      return AVERROR(EINVAL)(-(22));
  }

  dst = ((uint8_t*)target_obj) + o->offset;
  if (w_out) *w_out = *(int *)dst;
  if (h_out) *h_out = *((int *)dst+1);
  return 0;
1321}

1323int av_opt_get_video_rate(void *obj, const char *name, int search_flags, AVRational *out_val)
1324{
  return av_opt_get_q(obj, name, search_flags, out_val);
1326}

1328static int get_format(void *obj, const char *name, int search_flags, void *out_fmt,
                    enum AVOptionType type, const char *desc)
1330{
  void *dst, *target_obj;
  const AVOption *o = av_opt_find2(obj, name, NULL((void*)0), 0, search_flags, &target_obj);
  if (!o || !target_obj)
      return AVERROR_OPTION_NOT_FOUND(-(int)((0xF8) | (('O') << 8) | (('P') << 16) | (
(unsigned)('T') << 24)));
  if (o->type != type) {
      av_log(obj, AV_LOG_ERROR16,
             "The value for option '%s' is not a %s format.\n", desc, name);
      return AVERROR(EINVAL)(-(22));
  }

  dst = ((uint8_t*)target_obj) + o->offset;
  if (type == AV_OPT_TYPE_PIXEL_FMT)
      *(enum AVPixelFormat *)out_fmt = *(enum AVPixelFormat *)dst;
  else
      *(enum AVSampleFormat*)out_fmt = *(enum AVSampleFormat*)dst;

  return 0;
1348}

1350int av_opt_get_pixel_fmt(void *obj, const char *name, int search_flags, enum AVPixelFormat *out_fmt)
1351{
  return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_PIXEL_FMT, "pixel");
1353}

1355int av_opt_get_sample_fmt(void *obj, const char *name, int search_flags, enum AVSampleFormat *out_fmt)
1356{
  return get_format(obj, name, search_flags, out_fmt, AV_OPT_TYPE_SAMPLE_FMT, "sample");
1358}

1360int av_opt_get_chlayout(void *obj, const char *name, int search_flags, AVChannelLayout *cl)
1361{
  void *dst, *target_obj;
  const AVOption *o = av_opt_find2(obj, name, NULL((void*)0), 0, search_flags, &target_obj);
  if (!o || !target_obj)
      return AVERROR_OPTION_NOT_FOUND(-(int)((0xF8) | (('O') << 8) | (('P') << 16) | (
(unsigned)('T') << 24)));
  if (o->type != AV_OPT_TYPE_CHLAYOUT) {
      av_log(obj, AV_LOG_ERROR16,
             "The value for option '%s' is not a channel layout.\n", name);
      return AVERROR(EINVAL)(-(22));
  }

  dst = ((uint8_t*)target_obj) + o->offset;
  return av_channel_layout_copy(cl, dst);
1374}

1376int av_opt_get_dict_val(void *obj, const char *name, int search_flags, AVDictionary **out_val)
1377{
  void *target_obj;
  AVDictionary *src;
  const AVOption *o = av_opt_find2(obj, name, NULL((void*)0), 0, search_flags, &target_obj);

  if (!o || !target_obj)
      return AVERROR_OPTION_NOT_FOUND(-(int)((0xF8) | (('O') << 8) | (('P') << 16) | (
(unsigned)('T') << 24)));
  if (o->type != AV_OPT_TYPE_DICT)
      return AVERROR(EINVAL)(-(22));

  src = *(AVDictionary **)(((uint8_t *)target_obj) + o->offset);

  return av_dict_copy(out_val, src, 0);
1390}

1392int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name)
1393{
  const AVOption *field = av_opt_find(obj, field_name, NULL((void*)0), 0, 0);
  const AVOption *flag  = av_opt_find(obj, flag_name,
                                      field ? field->unit : NULL((void*)0), 0, 0);
  int64_t res;

  if (!field || !flag || flag->type != AV_OPT_TYPE_CONST ||
      av_opt_get_int(obj, field_name, 0, &res) < 0)
      return 0;
  return res & flag->default_val.i64;
1403}

1405static void log_int_value(void *av_log_obj, int level, int64_t i)
1406{
  if (i == INT_MAX2147483647) {
      av_log(av_log_obj, level, "INT_MAX");
  } else if (i == INT_MIN(-2147483647 -1)) {
      av_log(av_log_obj, level, "INT_MIN");
  } else if (i == UINT32_MAX(4294967295U)) {
      av_log(av_log_obj, level, "UINT32_MAX");
  } else if (i == INT64_MAX(9223372036854775807L)) {
      av_log(av_log_obj, level, "I64_MAX");
  } else if (i == INT64_MIN(-9223372036854775807L -1)) {
      av_log(av_log_obj, level, "I64_MIN");
  } else {
      av_log(av_log_obj, level, "%"PRId64"l" "d", i);
  }
1420}

1422static void log_value(void *av_log_obj, int level, double d)
1423{
  if      (d == INT_MAX2147483647) {
      av_log(av_log_obj, level, "INT_MAX");
  } else if (d == INT_MIN(-2147483647 -1)) {
      av_log(av_log_obj, level, "INT_MIN");
  } else if (d == UINT32_MAX(4294967295U)) {
      av_log(av_log_obj, level, "UINT32_MAX");
  } else if (d == (double)INT64_MAX(9223372036854775807L)) {
      av_log(av_log_obj, level, "I64_MAX");
  } else if (d == INT64_MIN(-9223372036854775807L -1)) {
      av_log(av_log_obj, level, "I64_MIN");
  } else if (d == FLT_MAX3.40282347e+38F) {
      av_log(av_log_obj, level, "FLT_MAX");
  } else if (d == FLT_MIN1.17549435e-38F) {
      av_log(av_log_obj, level, "FLT_MIN");
  } else if (d == -FLT_MAX3.40282347e+38F) {
      av_log(av_log_obj, level, "-FLT_MAX");
  } else if (d == -FLT_MIN1.17549435e-38F) {
      av_log(av_log_obj, level, "-FLT_MIN");
  } else if (d == DBL_MAX1.7976931348623157e+308) {
      av_log(av_log_obj, level, "DBL_MAX");
  } else if (d == DBL_MIN2.2250738585072014e-308) {
      av_log(av_log_obj, level, "DBL_MIN");
  } else if (d == -DBL_MAX1.7976931348623157e+308) {
      av_log(av_log_obj, level, "-DBL_MAX");
  } else if (d == -DBL_MIN2.2250738585072014e-308) {
      av_log(av_log_obj, level, "-DBL_MIN");
  } else {
      av_log(av_log_obj, level, "%g", d);
  }
1453}

1455static const char *get_opt_const_name(void *obj, const char *unit, int64_t value)
1456{
  const AVOption *opt = NULL((void*)0);

  if (!unit)
      return NULL((void*)0);
  while ((opt = av_opt_next(obj, opt)))
      if (opt->type == AV_OPT_TYPE_CONST && !strcmp(opt->unit, unit) &&
          opt->default_val.i64 == value)
          return opt->name;
  return NULL((void*)0);
1466}

1468static char *get_opt_flags_string(void *obj, const char *unit, int64_t value)
1469{
  const AVOption *opt = NULL((void*)0);
  char flags[512];

  flags[0] = 0;
  if (!unit)
      return NULL((void*)0);
  while ((opt = av_opt_next(obj, opt))) {
      if (opt->type == AV_OPT_TYPE_CONST && !strcmp(opt->unit, unit) &&
          opt->default_val.i64 & value) {
          if (flags[0])
              av_strlcatf(flags, sizeof(flags), "+");
          av_strlcatf(flags, sizeof(flags), "%s", opt->name);
      }
  }
  if (flags[0])
      return av_strdup(flags);
  return NULL((void*)0);
1487}

1489static void log_type(void *av_log_obj, const AVOption *o,
                   enum AVOptionType parent_type)
1491{
  const enum AVOptionType type = TYPE_BASE(o->type)((o->type) & ~AV_OPT_TYPE_FLAG_ARRAY);

  if (o->type == AV_OPT_TYPE_CONST && (TYPE_BASE(parent_type)((parent_type) & ~AV_OPT_TYPE_FLAG_ARRAY) == AV_OPT_TYPE_INT || TYPE_BASE(parent_type)((parent_type) & ~AV_OPT_TYPE_FLAG_ARRAY) == AV_OPT_TYPE_INT64))
      av_log(av_log_obj, AV_LOG_INFO32, "%-12"PRId64"l" "d"" ", o->default_val.i64);
  else if (type < FF_ARRAY_ELEMS(opt_type_desc)(sizeof(opt_type_desc) / sizeof((opt_type_desc)[0])) && opt_type_desc[type].name) {
      if (o->type & AV_OPT_TYPE_FLAG_ARRAY)
          av_log(av_log_obj, AV_LOG_INFO32, "[%-10s]", opt_type_desc[type].name);
      else
          av_log(av_log_obj, AV_LOG_INFO32, "%-12s ", opt_type_desc[type].name);
  }
  else
      av_log(av_log_obj, AV_LOG_INFO32, "%-12s ", "");
1504}

1506static void log_default(void *obj, void *av_log_obj, const AVOption *opt)
1507{
  if (opt->type == AV_OPT_TYPE_CONST || opt->type == AV_OPT_TYPE_BINARY)
      return;
  if ((opt->type == AV_OPT_TYPE_COLOR      ||
       opt->type == AV_OPT_TYPE_IMAGE_SIZE ||
       opt->type == AV_OPT_TYPE_STRING     ||
       opt->type == AV_OPT_TYPE_DICT       ||
       opt->type == AV_OPT_TYPE_CHLAYOUT   ||
       opt->type == AV_OPT_TYPE_VIDEO_RATE) &&
      !opt->default_val.str)
      return;

  if (opt->type & AV_OPT_TYPE_FLAG_ARRAY) {
      const AVOptionArrayDef *arr = opt->default_val.arr;
      if (arr && arr->def)
          av_log(av_log_obj, AV_LOG_INFO32, " (default %s)", arr->def);
      return;
  }

  av_log(av_log_obj, AV_LOG_INFO32, " (default ");
  switch (opt->type) {
  case AV_OPT_TYPE_BOOL:
      av_log(av_log_obj, AV_LOG_INFO32, "%s", get_bool_name(opt->default_val.i64));
      break;
  case AV_OPT_TYPE_FLAGS: {
      char *def_flags = get_opt_flags_string(obj, opt->unit, opt->default_val.i64);
      if (def_flags) {
          av_log(av_log_obj, AV_LOG_INFO32, "%s", def_flags);
          av_freep(&def_flags);
      } else {
          av_log(av_log_obj, AV_LOG_INFO32, "%"PRIX64"l" "X", opt->default_val.i64);
      }
      break;
  }
  case AV_OPT_TYPE_DURATION: {
      char buf[25];
      format_duration(buf, sizeof(buf), opt->default_val.i64);
      av_log(av_log_obj, AV_LOG_INFO32, "%s", buf);
      break;
  }
  case AV_OPT_TYPE_UINT:
  case AV_OPT_TYPE_INT:
  case AV_OPT_TYPE_UINT64:
  case AV_OPT_TYPE_INT64: {
      const char *def_const = get_opt_const_name(obj, opt->unit, opt->default_val.i64);
      if (def_const)
          av_log(av_log_obj, AV_LOG_INFO32, "%s", def_const);
      else
          log_int_value(av_log_obj, AV_LOG_INFO32, opt->default_val.i64);
      break;
  }
  case AV_OPT_TYPE_DOUBLE:
  case AV_OPT_TYPE_FLOAT:
      log_value(av_log_obj, AV_LOG_INFO32, opt->default_val.dbl);
      break;
  case AV_OPT_TYPE_RATIONAL: {
      AVRational q = av_d2q(opt->default_val.dbl, INT_MAX2147483647);
      av_log(av_log_obj, AV_LOG_INFO32, "%d/%d", q.num, q.den); }
      break;
  case AV_OPT_TYPE_PIXEL_FMT:
      av_log(av_log_obj, AV_LOG_INFO32, "%s", (char *)av_x_if_null(av_get_pix_fmt_name(opt->default_val.i64), "none"));
      break;
  case AV_OPT_TYPE_SAMPLE_FMT:
      av_log(av_log_obj, AV_LOG_INFO32, "%s", (char *)av_x_if_null(av_get_sample_fmt_name(opt->default_val.i64), "none"));
      break;
  case AV_OPT_TYPE_COLOR:
  case AV_OPT_TYPE_IMAGE_SIZE:
  case AV_OPT_TYPE_STRING:
  case AV_OPT_TYPE_DICT:
  case AV_OPT_TYPE_VIDEO_RATE:
  case AV_OPT_TYPE_CHLAYOUT:
      av_log(av_log_obj, AV_LOG_INFO32, "\"%s\"", opt->default_val.str);
      break;
  }
  av_log(av_log_obj, AV_LOG_INFO32, ")");
1582}

1584static void opt_list(void *obj, void *av_log_obj, const char *unit,
                   int req_flags, int rej_flags, enum AVOptionType parent_type)
1586{
  const AVOption *opt = NULL((void*)0);
  AVOptionRanges *r;
  int i;

  while ((opt = av_opt_next(obj, opt))) {
      if (!(opt->flags & req_flags) || (opt->flags & rej_flags))
          continue;

      /* Don't print CONST's on level one.
       * Don't print anything but CONST's on level two.
       * Only print items from the requested unit.
       */
      if (!unit && opt->type == AV_OPT_TYPE_CONST)
          continue;
      else if (unit && opt->type != AV_OPT_TYPE_CONST)
          continue;
      else if (unit && opt->type == AV_OPT_TYPE_CONST && strcmp(unit, opt->unit))
          continue;
      else if (unit && opt->type == AV_OPT_TYPE_CONST)
          av_log(av_log_obj, AV_LOG_INFO32, "     %-15s ", opt->name);
      else
          av_log(av_log_obj, AV_LOG_INFO32, "  %s%-17s ",
                 (opt->flags & AV_OPT_FLAG_FILTERING_PARAM(1 << 16)) ? " " : "-",
                 opt->name);

      log_type(av_log_obj, opt, parent_type);

      av_log(av_log_obj, AV_LOG_INFO32, "%c%c%c%c%c%c%c%c%c%c%c",
             (opt->flags & AV_OPT_FLAG_ENCODING_PARAM(1 << 0))  ? 'E' : '.',
             (opt->flags & AV_OPT_FLAG_DECODING_PARAM(1 << 1))  ? 'D' : '.',
             (opt->flags & AV_OPT_FLAG_FILTERING_PARAM(1 << 16)) ? 'F' : '.',
             (opt->flags & AV_OPT_FLAG_VIDEO_PARAM(1 << 4))     ? 'V' : '.',
             (opt->flags & AV_OPT_FLAG_AUDIO_PARAM(1 << 3))     ? 'A' : '.',
             (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM(1 << 5))  ? 'S' : '.',
             (opt->flags & AV_OPT_FLAG_EXPORT(1 << 6))          ? 'X' : '.',
             (opt->flags & AV_OPT_FLAG_READONLY(1 << 7))        ? 'R' : '.',
             (opt->flags & AV_OPT_FLAG_BSF_PARAM(1 << 8))       ? 'B' : '.',
             (opt->flags & AV_OPT_FLAG_RUNTIME_PARAM(1 << 15))   ? 'T' : '.',
             (opt->flags & AV_OPT_FLAG_DEPRECATED(1 << 17))      ? 'P' : '.');

      if (opt->help)
          av_log(av_log_obj, AV_LOG_INFO32, " %s", opt->help);

      if (av_opt_query_ranges(&r, obj, opt->name, AV_OPT_SEARCH_FAKE_OBJ(1 << 1)) >= 0) {
          switch (opt->type) {
          case AV_OPT_TYPE_INT:
          case AV_OPT_TYPE_UINT:
          case AV_OPT_TYPE_INT64:
          case AV_OPT_TYPE_UINT64:
          case AV_OPT_TYPE_DOUBLE:
          case AV_OPT_TYPE_FLOAT:
          case AV_OPT_TYPE_RATIONAL:
              for (i = 0; i < r->nb_ranges; i++) {
                  av_log(av_log_obj, AV_LOG_INFO32, " (from ");
                  log_value(av_log_obj, AV_LOG_INFO32, r->range[i]->value_min);
                  av_log(av_log_obj, AV_LOG_INFO32, " to ");
                  log_value(av_log_obj, AV_LOG_INFO32, r->range[i]->value_max);
                  av_log(av_log_obj, AV_LOG_INFO32, ")");
              }
              break;
          }
          av_opt_freep_ranges(&r);
      }

      log_default(obj, av_log_obj, opt);

      av_log(av_log_obj, AV_LOG_INFO32, "\n");
      if (opt->unit && opt->type != AV_OPT_TYPE_CONST)
          opt_list(obj, av_log_obj, opt->unit, req_flags, rej_flags, opt->type);
  }
1657}

1659int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags)
1660{
  if (!obj)
      return -1;

  av_log(av_log_obj, AV_LOG_INFO32, "%s AVOptions:\n", (*(AVClass **)obj)->class_name);

  opt_list(obj, av_log_obj, NULL((void*)0), req_flags, rej_flags, -1);

  return 0;
1669}

1671void av_opt_set_defaults(void *s)
1672{
  av_opt_set_defaults2(s, 0, 0);
1674}

1676void av_opt_set_defaults2(void *s, int mask, int flags)
1677{
  const AVOption *opt = NULL((void*)0);
  while ((opt = av_opt_next(s, opt))) {
      void *dst = ((uint8_t*)s) + opt->offset;

      if ((opt->flags & mask) != flags)
          continue;

      if (opt->flags & AV_OPT_FLAG_READONLY(1 << 7))
          continue;

      if (opt->type & AV_OPT_TYPE_FLAG_ARRAY) {
          const AVOptionArrayDef *arr = opt->default_val.arr;
          const char              sep = opt_array_sep(opt);

          av_assert0(sep && sep != '\\' &&do { if (!(sep && sep != '\\' && (sep < 'a'
 || sep > 'z') && (sep < 'A' || sep > 'Z') &&
 (sep < '0' || sep > '9'))) { av_log(((void*)0), 0, "Assertion %s failed at %s:%d\n"
, "sep && sep != '\\\\' && (sep < 'a' || sep > 'z') && (sep < 'A' || sep > 'Z') && (sep < '0' || sep > '9')"
, "/root/firefox-clang/media/ffvpx/libavutil/opt.c", 1695); abort
(); } } while (0)
                     (sep < 'a' || sep > 'z') &&do { if (!(sep && sep != '\\' && (sep < 'a'
 || sep > 'z') && (sep < 'A' || sep > 'Z') &&
 (sep < '0' || sep > '9'))) { av_log(((void*)0), 0, "Assertion %s failed at %s:%d\n"
, "sep && sep != '\\\\' && (sep < 'a' || sep > 'z') && (sep < 'A' || sep > 'Z') && (sep < '0' || sep > '9')"
, "/root/firefox-clang/media/ffvpx/libavutil/opt.c", 1695); abort
(); } } while (0)
                     (sep < 'A' || sep > 'Z') &&do { if (!(sep && sep != '\\' && (sep < 'a'
 || sep > 'z') && (sep < 'A' || sep > 'Z') &&
 (sep < '0' || sep > '9'))) { av_log(((void*)0), 0, "Assertion %s failed at %s:%d\n"
, "sep && sep != '\\\\' && (sep < 'a' || sep > 'z') && (sep < 'A' || sep > 'Z') && (sep < '0' || sep > '9')"
, "/root/firefox-clang/media/ffvpx/libavutil/opt.c", 1695); abort
(); } } while (0)
                     (sep < '0' || sep > '9'))do { if (!(sep && sep != '\\' && (sep < 'a'
 || sep > 'z') && (sep < 'A' || sep > 'Z') &&
 (sep < '0' || sep > '9'))) { av_log(((void*)0), 0, "Assertion %s failed at %s:%d\n"
, "sep && sep != '\\\\' && (sep < 'a' || sep > 'z') && (sep < 'A' || sep > 'Z') && (sep < '0' || sep > '9')"
, "/root/firefox-clang/media/ffvpx/libavutil/opt.c", 1695); abort
(); } } while (0);

          if (arr && arr->def)
              opt_set_array(s, s, opt, arr->def, dst);

          continue;
      }

      switch (opt->type) {
          case AV_OPT_TYPE_CONST:
              /* Nothing to be done here */
              break;
          case AV_OPT_TYPE_BOOL:
          case AV_OPT_TYPE_FLAGS:
          case AV_OPT_TYPE_INT:
          case AV_OPT_TYPE_UINT:
          case AV_OPT_TYPE_INT64:
          case AV_OPT_TYPE_UINT64:
          case AV_OPT_TYPE_DURATION:
          case AV_OPT_TYPE_PIXEL_FMT:
          case AV_OPT_TYPE_SAMPLE_FMT:
              write_number(s, opt, dst, 1, 1, opt->default_val.i64);
              break;
          case AV_OPT_TYPE_DOUBLE:
          case AV_OPT_TYPE_FLOAT: {
              double val;
              val = opt->default_val.dbl;
              write_number(s, opt, dst, val, 1, 1);
          }
          break;
          case AV_OPT_TYPE_RATIONAL: {
              AVRational val;
              val = av_d2q(opt->default_val.dbl, INT_MAX2147483647);
              write_number(s, opt, dst, 1, val.den, val.num);
          }
          break;
          case AV_OPT_TYPE_COLOR:
              set_string_color(s, opt, opt->default_val.str, dst);
              break;
          case AV_OPT_TYPE_STRING:
              set_string(s, opt, opt->default_val.str, dst);
              break;
          case AV_OPT_TYPE_IMAGE_SIZE:
              set_string_image_size(s, opt, opt->default_val.str, dst);
              break;
          case AV_OPT_TYPE_VIDEO_RATE:
              set_string_video_rate(s, opt, opt->default_val.str, dst);
              break;
          case AV_OPT_TYPE_BINARY:
              set_string_binary(s, opt, opt->default_val.str, dst);
              break;
          case AV_OPT_TYPE_CHLAYOUT:
              set_string_channel_layout(s, opt, opt->default_val.str, dst);
              break;
          case AV_OPT_TYPE_DICT:
              set_string_dict(s, opt, opt->default_val.str, dst);
              break;
      default:
          av_log(s, AV_LOG_DEBUG48, "AVOption type %d of option %s not implemented yet\n",
                 opt->type, opt->name);
      }
  }
1757}

1759/**
* Store the value in the field in ctx that is named like key.
* ctx must be an AVClass context, storing is done using AVOptions.
*
* @param buf the string to parse, buf will be updated to point at the
* separator just after the parsed key/value pair
* @param key_val_sep a 0-terminated list of characters used to
* separate key from value
* @param pairs_sep a 0-terminated list of characters used to separate
* two pairs from each other
* @return 0 if the key/value pair has been successfully parsed and
* set, or a negative value corresponding to an AVERROR code in case
* of error:
* AVERROR(EINVAL) if the key/value pair cannot be parsed,
* the error code issued by av_opt_set() if the key/value pair
* cannot be set
*/
1776static int parse_key_value_pair(void *ctx, const char **buf,
                              const char *key_val_sep, const char *pairs_sep)
1778{
  char *key = av_get_token(buf, key_val_sep);
  char *val;
  int ret;

  if (!key)
      return AVERROR(ENOMEM)(-(12));

  if (*key && strspn(*buf, key_val_sep)) {
      (*buf)++;
      val = av_get_token(buf, pairs_sep);
      if (!val) {
          av_freep(&key);
          return AVERROR(ENOMEM)(-(12));
      }
  } else {
      av_log(ctx, AV_LOG_ERROR16, "Missing key or no key/value separator found after key '%s'\n", key);
      av_free(key);
      return AVERROR(EINVAL)(-(22));
  }

  av_log(ctx, AV_LOG_DEBUG48, "Setting entry with key '%s' to value '%s'\n", key, val);

  ret = av_opt_set(ctx, key, val, AV_OPT_SEARCH_CHILDREN(1 << 0));
  if (ret == AVERROR_OPTION_NOT_FOUND(-(int)((0xF8) | (('O') << 8) | (('P') << 16) | (
(unsigned)('T') << 24))))
      av_log(ctx, AV_LOG_ERROR16, "Key '%s' not found.\n", key);

  av_free(key);
  av_free(val);
  return ret;
1808}

1810int av_set_options_string(void *ctx, const char *opts,
                        const char *key_val_sep, const char *pairs_sep)
1812{
  int ret, count = 0;

  if (!opts)
      return 0;

  while (*opts) {
      if ((ret = parse_key_value_pair(ctx, &opts, key_val_sep, pairs_sep)) < 0)
          return ret;
      count++;

      if (*opts)
          opts++;
  }

  return count;
1828}

1830#define WHITESPACES" \n\t\r" " \n\t\r"

1832static int is_key_char(char c)
1833{
  return (unsigned)((c | 32) - 'a') < 26 ||
         (unsigned)(c - '0') < 10 ||
         c == '-' || c == '_' || c == '/' || c == '.';
1837}

1839/**
* Read a key from a string.
*
* The key consists of is_key_char characters and must be terminated by a
* character from the delim string; spaces are ignored.
*
* @return  0 for success (even with ellipsis), <0 for failure
*/
1847static int get_key(const char **ropts, const char *delim, char **rkey)
1848{
  const char *opts = *ropts;
  const char *key_start, *key_end;

  key_start = opts += strspn(opts, WHITESPACES" \n\t\r");
  while (is_key_char(*opts))
      opts++;
  key_end = opts;
  opts += strspn(opts, WHITESPACES" \n\t\r");
  if (!*opts || !strchr(delim, *opts))
      return AVERROR(EINVAL)(-(22));
  opts++;
  if (!(*rkey = av_malloc(key_end - key_start + 1)))
      return AVERROR(ENOMEM)(-(12));
  memcpy(*rkey, key_start, key_end - key_start);
  (*rkey)[key_end - key_start] = 0;
  *ropts = opts;
  return 0;
1866}

1868int av_opt_get_key_value(const char **ropts,
                       const char *key_val_sep, const char *pairs_sep,
                       unsigned flags,
                       char **rkey, char **rval)
1872{
  int ret;
  char *key = NULL((void*)0), *val;
  const char *opts = *ropts;

  if ((ret = get_key(&opts, key_val_sep, &key)) < 0 &&
      !(flags & AV_OPT_FLAG_IMPLICIT_KEY))
      return AVERROR(EINVAL)(-(22));
  if (!(val = av_get_token(&opts, pairs_sep))) {
      av_free(key);
      return AVERROR(ENOMEM)(-(12));
  }
  *ropts = opts;
  *rkey  = key;
  *rval  = val;
  return 0;
1888}

1890int av_opt_set_from_string(void *ctx, const char *opts,
                         const char *const *shorthand,
                         const char *key_val_sep, const char *pairs_sep)
1893{
  int ret, count = 0;
  const char *dummy_shorthand = NULL((void*)0);
  const char *key;

  if (!opts)
      return 0;
  if (!shorthand)
      shorthand = &dummy_shorthand;

  while (*opts) {
      char *parsed_key, *value;
      ret = av_opt_get_key_value(&opts, key_val_sep, pairs_sep,
                                 *shorthand ? AV_OPT_FLAG_IMPLICIT_KEY : 0,
                                 &parsed_key, &value);
      if (ret < 0) {
          if (ret == AVERROR(EINVAL)(-(22)))
              av_log(ctx, AV_LOG_ERROR16, "No option name near '%s'\n", opts);
          else
              av_log(ctx, AV_LOG_ERROR16, "Unable to parse '%s': %s\n", opts,
                     av_err2str(ret)av_make_error_string((char[64]){0}, 64, ret));
          return ret;
      }
      if (*opts)
          opts++;
      if (parsed_key) {
          key = parsed_key;
          while (*shorthand) /* discard all remaining shorthand */
              shorthand++;
      } else {
          key = *(shorthand++);
      }

      av_log(ctx, AV_LOG_DEBUG48, "Setting '%s' to value '%s'\n", key, value);
      if ((ret = av_opt_set(ctx, key, value, 0)) < 0) {
          if (ret == AVERROR_OPTION_NOT_FOUND(-(int)((0xF8) | (('O') << 8) | (('P') << 16) | (
(unsigned)('T') << 24))))
              av_log(ctx, AV_LOG_ERROR16, "Option '%s' not found\n", key);
          av_free(value);
          av_free(parsed_key);
          return ret;
      }

      av_free(value);
      av_free(parsed_key);
      count++;
  }
  return count;
1940}

1942void av_opt_free(void *obj)
1943{
  const AVOption *o = NULL((void*)0);
  while ((o = av_opt_next(obj, o))) {
      void *pitem = (uint8_t *)obj + o->offset;

      if (o->type & AV_OPT_TYPE_FLAG_ARRAY)
          opt_free_array(o, pitem, opt_array_pcount(pitem));
      else
          opt_free_elem(o->type, pitem);
  }
1953}

1955int av_opt_set_dict2(void *obj, AVDictionary **options, int search_flags)
1956{
  const AVDictionaryEntry *t = NULL((void*)0);
  AVDictionary    *tmp = NULL((void*)0);
  int ret;

  if (!options)
      return 0;

  while ((t = av_dict_iterate(*options, t))) {
      ret = av_opt_set(obj, t->key, t->value, search_flags);
      if (ret == AVERROR_OPTION_NOT_FOUND(-(int)((0xF8) | (('O') << 8) | (('P') << 16) | (
(unsigned)('T') << 24))))
          ret = av_dict_set(&tmp, t->key, t->value, AV_DICT_MULTIKEY64);
      if (ret < 0) {
          av_log(obj, AV_LOG_ERROR16, "Error setting option %s to value %s.\n", t->key, t->value);
          av_dict_free(&tmp);
          return ret;
      }
  }
  av_dict_free(options);
  *options = tmp;
  return 0;
1977}

1979int av_opt_set_dict(void *obj, AVDictionary **options)
1980{
  return av_opt_set_dict2(obj, options, 0);
1982}

1984const AVOption *av_opt_find(void *obj, const char *name, const char *unit,
                          int opt_flags, int search_flags)
1986{
  return av_opt_find2(obj, name, unit, opt_flags, search_flags, NULL((void*)0));
1988}

1990const AVOption *av_opt_find2(void *obj, const char *name, const char *unit,
                           int opt_flags, int search_flags, void **target_obj)
1992{
  const AVClass  *c;
  const AVOption *o = NULL((void*)0);

  if(!obj)
      return NULL((void*)0);

  c= *(AVClass**)obj;

  if (!c)
      return NULL((void*)0);

  if (search_flags & AV_OPT_SEARCH_CHILDREN(1 << 0)) {
      if (search_flags & AV_OPT_SEARCH_FAKE_OBJ(1 << 1)) {
          void *iter = NULL((void*)0);
          const AVClass *child;
          while (child = av_opt_child_class_iterate(c, &iter))
              if (o = av_opt_find2(&child, name, unit, opt_flags, search_flags, NULL((void*)0)))
                  return o;
      } else {
          void *child = NULL((void*)0);
          while (child = av_opt_child_next(obj, child))
              if (o = av_opt_find2(child, name, unit, opt_flags, search_flags, target_obj))
                  return o;
      }
  }

  while (o = av_opt_next(obj, o)) {
      if (!strcmp(o->name, name) && (o->flags & opt_flags) == opt_flags &&
          ((!unit && o->type != AV_OPT_TYPE_CONST) ||
           (unit  && o->type == AV_OPT_TYPE_CONST && o->unit && !strcmp(o->unit, unit)))) {
          if (target_obj) {
              if (!(search_flags & AV_OPT_SEARCH_FAKE_OBJ(1 << 1)))
                  *target_obj = obj;
              else
                  *target_obj = NULL((void*)0);
          }
          return o;
      }
  }
  return NULL((void*)0);
2033}

2035void *av_opt_child_next(void *obj, void *prev)
2036{
  const AVClass *c = *(AVClass **)obj;
  if (c->child_next)
      return c->child_next(obj, prev);
  return NULL((void*)0);
2041}

2043const AVClass *av_opt_child_class_iterate(const AVClass *parent, void **iter)
2044{
  if (parent->child_class_iterate)
      return parent->child_class_iterate(iter);
  return NULL((void*)0);
2048}

2050static int opt_copy_elem(void *logctx, enum AVOptionType type,
                       void *dst, const void *src)
2052{
  if (type == AV_OPT_TYPE_STRING) {
      const char *src_str = *(const char *const *)src;
      char         **dstp =  (char **)dst;
      if (*dstp != src_str)
          av_freep(dstp);
      if (src_str) {
          *dstp = av_strdup(src_str);
          if (!*dstp)
              return AVERROR(ENOMEM)(-(12));
      }
  } else if (type == AV_OPT_TYPE_BINARY) {
      const uint8_t *const *src8 = (const uint8_t *const *)src;
      uint8_t             **dst8 = (uint8_t **)dst;
      int len = *(const int *)(src8 + 1);
      if (*dst8 != *src8)
          av_freep(dst8);
      *dst8 = av_memdup(*src8, len);
      if (len && !*dst8) {
          *(int *)(dst8 + 1) = 0;
          return AVERROR(ENOMEM)(-(12));
      }
      *(int *)(dst8 + 1) = len;
  } else if (type == AV_OPT_TYPE_CONST) {
      // do nothing
  } else if (type == AV_OPT_TYPE_DICT) {
      const AVDictionary *sdict = *(const AVDictionary * const *)src;
      AVDictionary     **ddictp = (AVDictionary **)dst;
      if (sdict != *ddictp)
          av_dict_free(ddictp);
      *ddictp = NULL((void*)0);
      return av_dict_copy(ddictp, sdict, 0);
  } else if (type == AV_OPT_TYPE_CHLAYOUT) {
      if (dst != src)
          return av_channel_layout_copy(dst, src);
  } else if (opt_is_pod(type)) {
      size_t size = opt_type_desc[type].size;
      memcpy(dst, src, size);
  } else {
      av_log(logctx, AV_LOG_ERROR16, "Unhandled option type: %d\n", type);
      return AVERROR(EINVAL)(-(22));
  }

  return 0;
2096}

2098static int opt_copy_array(void *logctx, const AVOption *o,
                        void **pdst, const void * const *psrc)
2100{
  unsigned nb_elems = *opt_array_pcount(psrc);
  void         *dst = NULL((void*)0);
  int ret;

  if (*pdst == *psrc) {
      *pdst                   = NULL((void*)0);
      *opt_array_pcount(pdst) = 0;
  }

  opt_free_array(o, pdst, opt_array_pcount(pdst));

  dst = av_calloc(nb_elems, opt_type_desc[TYPE_BASE(o->type)((o->type) & ~AV_OPT_TYPE_FLAG_ARRAY)].size);
  if (!dst)
      return AVERROR(ENOMEM)(-(12));

  for (unsigned i = 0; i < nb_elems; i++) {
      ret = opt_copy_elem(logctx, TYPE_BASE(o->type)((o->type) & ~AV_OPT_TYPE_FLAG_ARRAY),
                          opt_array_pelem(o, dst, i),
                          opt_array_pelem(o, *(void**)psrc, i));
      if (ret < 0) {
          opt_free_array(o, &dst, &nb_elems);
          return ret;
      }
  }

  *pdst                   = dst;
  *opt_array_pcount(pdst) = nb_elems;

  return 0;
2130}

2132int av_opt_copy(void *dst, const void *src)
2133{
  const AVOption *o = NULL((void*)0);
  const AVClass *c;
  int ret = 0;

  if (!src)
      return AVERROR(EINVAL)(-(22));

  c = *(AVClass **)src;
  if (!c || c != *(AVClass **)dst)
      return AVERROR(EINVAL)(-(22));

  while ((o = av_opt_next(src, o))) {
      void *field_dst = (uint8_t *)dst + o->offset;
      void *field_src = (uint8_t *)src + o->offset;

      int err = (o->type & AV_OPT_TYPE_FLAG_ARRAY)                 ?
                opt_copy_array(dst, o,       field_dst, field_src) :
                opt_copy_elem (dst, o->type, field_dst, field_src);
      if (err < 0)
          ret = err;
  }
  return ret;
2156}

2158int av_opt_get_array_size(void *obj, const char *name, int search_flags,
                        unsigned int *out_val)
2160{
  void *target_obj, *parray;
  const AVOption *o;

  o = av_opt_find2(obj, name, NULL((void*)0), 0, search_flags, &target_obj);
  if (!o || !target_obj)
      return AVERROR_OPTION_NOT_FOUND(-(int)((0xF8) | (('O') << 8) | (('P') << 16) | (
(unsigned)('T') << 24)));
  if (!(o->type & AV_OPT_TYPE_FLAG_ARRAY))
      return AVERROR(EINVAL)(-(22));

  parray = (uint8_t *)target_obj + o->offset;
  *out_val = *opt_array_pcount(parray);

  return 0;
2174}

2176int av_opt_get_array(void *obj, const char *name, int search_flags,
                   unsigned int start_elem, unsigned int nb_elems,
                   enum AVOptionType out_type, void *out_val)
2179{
  const size_t elem_size_out = opt_type_desc[TYPE_BASE(out_type)((out_type) & ~AV_OPT_TYPE_FLAG_ARRAY)].size;

  const AVOption *o;
  void *target_obj;

  const void *parray;
  unsigned array_size;

  int ret;

  o = av_opt_find2(obj, name, NULL((void*)0), 0, search_flags, &target_obj);
  if (!o || !target_obj)
      return AVERROR_OPTION_NOT_FOUND(-(int)((0xF8) | (('O') << 8) | (('P') << 16) | (
(unsigned)('T') << 24)));
  if (!(o->type & AV_OPT_TYPE_FLAG_ARRAY) ||
      (out_type & AV_OPT_TYPE_FLAG_ARRAY))
      return AVERROR(EINVAL)(-(22));

  parray     = (uint8_t *)target_obj + o->offset;
  array_size = *opt_array_pcount(parray);

  if (start_elem >= array_size ||
      array_size - start_elem < nb_elems)
      return AVERROR(EINVAL)(-(22));

  for (unsigned i = 0; i < nb_elems; i++) {
      const void *src = opt_array_pelem(o, *(void**)parray, start_elem + i);
      void       *dst = (uint8_t*)out_val + i * elem_size_out;

      if (out_type == TYPE_BASE(o->type)((o->type) & ~AV_OPT_TYPE_FLAG_ARRAY)) {
          ret = opt_copy_elem(obj, out_type, dst, src);
          if (ret < 0)
              goto fail;
      } else if (out_type == AV_OPT_TYPE_STRING) {
          uint8_t buf[128], *out = buf;

          ret = opt_get_elem(o, &out, sizeof(buf), src, search_flags);
          if (ret < 0)
              goto fail;

          if (out == buf) {
              out = av_strdup(buf);
              if (!out) {
                  ret = AVERROR(ENOMEM)(-(12));
                  goto fail;
              }
          }

          *(uint8_t**)dst = out;
      } else if (out_type == AV_OPT_TYPE_INT64    ||
                 out_type == AV_OPT_TYPE_DOUBLE   ||
                 out_type == AV_OPT_TYPE_RATIONAL) {
          double     num = 1.0;
          int        den = 1;
          int64_t intnum = 1;

          ret = read_number(o, src, &num, &den, &intnum);
          if (ret < 0)
              goto fail;

          switch (out_type) {
          case AV_OPT_TYPE_INT64:
              *(int64_t*)dst = (num == den) ?  intnum : num * intnum / den;
              break;
          case AV_OPT_TYPE_DOUBLE:
              *(double*)dst = num * intnum / den;
              break;
          case AV_OPT_TYPE_RATIONAL:
              *(AVRational*)dst = (num == 1.0 && (int)intnum == intnum) ?
                                  (AVRational){ intnum, den }           :
                                  double_to_rational(num * intnum / den);
              break;
          default: av_assert0(0)do { if (!(0)) { av_log(((void*)0), 0, "Assertion %s failed at %s:%d\n"
, "0", "/root/firefox-clang/media/ffvpx/libavutil/opt.c", 2251
); abort(); } } while (0);
          }
      } else
          return AVERROR(ENOSYS)(-(38));
  }

  return 0;
2258fail:
  for (unsigned i = 0; i < nb_elems; i++)
      opt_free_elem(out_type, (uint8_t*)out_val + i * elem_size_out);
  return ret;
2262}

2264int av_opt_set_array(void *obj, const char *name, int search_flags,
                   unsigned int start_elem, unsigned int nb_elems,
                   enum AVOptionType val_type, const void *val)
2267{
  const size_t elem_size_val = opt_type_desc[TYPE_BASE(val_type)((val_type) & ~AV_OPT_TYPE_FLAG_ARRAY)].size;

  const AVOption *o;
  const AVOptionArrayDef *arr;
  void *target_obj;

  void *parray;
  void *new_elems;
  unsigned *array_size, new_size;
  size_t elem_size;

  int ret = 0;

  ret = opt_set_init(obj, name, search_flags, 0, &target_obj, &o, &parray);
  if (ret < 0)
      return ret;

  if (!(o->type & AV_OPT_TYPE_FLAG_ARRAY) ||
      (val_type & AV_OPT_TYPE_FLAG_ARRAY))
      return AVERROR(EINVAL)(-(22));

  arr        = o->default_val.arr;
  array_size = opt_array_pcount(parray);
  elem_size  = opt_type_desc[TYPE_BASE(o->type)((o->type) & ~AV_OPT_TYPE_FLAG_ARRAY)].size;

  if (start_elem > *array_size)
      return AVERROR(EINVAL)(-(22));

  // compute new array size
  if (!val) {
      if (*array_size - start_elem < nb_elems)
          return AVERROR(EINVAL)(-(22));

      new_size = *array_size - nb_elems;
  } else if (search_flags & AV_OPT_ARRAY_REPLACE(1 << 3)) {
      if (start_elem >= UINT_MAX(2147483647 *2U +1U) - nb_elems)
          return AVERROR(EINVAL)(-(22));

      new_size = FFMAX(*array_size, start_elem + nb_elems)((*array_size) > (start_elem + nb_elems) ? (*array_size) :
 (start_elem + nb_elems));
  } else {
      if (nb_elems >= UINT_MAX(2147483647 *2U +1U) - *array_size)
          return AVERROR(EINVAL)(-(22));

      new_size = *array_size + nb_elems;
  }

  if (arr &&
      ((arr->size_max && new_size > arr->size_max) ||
       (arr->size_min && new_size < arr->size_min)))
      return AVERROR(EINVAL)(-(22));

  // desired operation is shrinking the array
  if (!val) {
      void *array = *(void**)parray;

      for (unsigned i = 0; i < nb_elems; i++) {
          opt_free_elem(o->type,
                        opt_array_pelem(o, array, start_elem + i));
      }

      if (new_size > 0) {
          memmove(opt_array_pelem(o, array, start_elem),
                  opt_array_pelem(o, array, start_elem + nb_elems),
                  elem_size * (*array_size - start_elem - nb_elems));

          array = av_realloc_array(array, new_size, elem_size);
          if (!array)
              return AVERROR(ENOMEM)(-(12));

          *(void**)parray = array;
      } else
          av_freep(parray);

      *array_size = new_size;

      return 0;
  }

  // otherwise, desired operation is insert/replace;
  // first, store new elements in a separate array to simplify
  // rollback on failure
  new_elems = av_calloc(nb_elems, elem_size);
  if (!new_elems)
      return AVERROR(ENOMEM)(-(12));

  // convert/validate each new element
  for (unsigned i = 0; i < nb_elems; i++) {
      void       *dst = opt_array_pelem(o, new_elems, i);
      const void *src = (uint8_t*)val + i * elem_size_val;

      double     num = 1.0;
      int        den = 1;
      int64_t intnum = 1;

      if (val_type == TYPE_BASE(o->type)((o->type) & ~AV_OPT_TYPE_FLAG_ARRAY)) {
          int err;

          ret = opt_copy_elem(obj, val_type, dst, src);
          if (ret < 0)
              goto fail;

          // validate the range for numeric options
          err = read_number(o, dst, &num, &den, &intnum);
          if (err >= 0 && TYPE_BASE(o->type)((o->type) & ~AV_OPT_TYPE_FLAG_ARRAY) != AV_OPT_TYPE_FLAGS &&
              (!den || o->max * den < num * intnum || o->min * den > num * intnum)) {
              num = den ? num * intnum / den : (num && intnum ? INFINITY(__builtin_inff()) : NAN(__builtin_nanf("")));
              av_log(obj, AV_LOG_ERROR16, "Cannot set array element %u for "
                     "parameter '%s': value %f out of range [%g - %g]\n",
                     start_elem + i, o->name, num, o->min, o->max);
              ret = AVERROR(ERANGE)(-(34));
              goto fail;
          }
      } else if (val_type == AV_OPT_TYPE_STRING) {
          ret = opt_set_elem(obj, target_obj, o, *(const char **)src, dst);
          if (ret < 0)
              goto fail;
      } else if (val_type == AV_OPT_TYPE_INT ||
            val_type == AV_OPT_TYPE_INT64    ||
            val_type == AV_OPT_TYPE_FLOAT    ||
            val_type == AV_OPT_TYPE_DOUBLE   ||
            val_type == AV_OPT_TYPE_RATIONAL) {

          switch (val_type) {
          case AV_OPT_TYPE_INT:       intnum = *(int*)src;                break;
          case AV_OPT_TYPE_INT64:     intnum = *(int64_t*)src;            break;
          case AV_OPT_TYPE_FLOAT:     num    = *(float*)src;              break;
          case AV_OPT_TYPE_DOUBLE:    num    = *(double*)src;             break;
          case AV_OPT_TYPE_RATIONAL:  intnum = ((AVRational*)src)->num;
                                      den    = ((AVRational*)src)->den;   break;
          default: av_assert0(0)do { if (!(0)) { av_log(((void*)0), 0, "Assertion %s failed at %s:%d\n"
, "0", "/root/firefox-clang/media/ffvpx/libavutil/opt.c", 2397
); abort(); } } while (0);
          }

          ret = write_number(obj, o, dst, num, den, intnum);
          if (ret < 0)
              goto fail;
      } else {
          ret = AVERROR(ENOSYS)(-(38));
          goto fail;
      }
  }

  // commit new elements to the array
  if (start_elem == 0 && nb_elems == new_size) {
      // replacing the existing array entirely
      opt_free_array(o, parray, array_size);
      *(void**)parray = new_elems;
      *array_size     = nb_elems;

      new_elems = NULL((void*)0);
      nb_elems  = 0;
  } else {
      void *array = av_realloc_array(*(void**)parray, new_size, elem_size);
      if (!array) {
          ret = AVERROR(ENOMEM)(-(12));
          goto fail;
      }

      if (search_flags & AV_OPT_ARRAY_REPLACE(1 << 3)) {
          // free the elements being overwritten
          for (unsigned i = start_elem; i < FFMIN(start_elem + nb_elems, *array_size)((start_elem + nb_elems) > (*array_size) ? (*array_size) :
 (start_elem + nb_elems)); i++)
              opt_free_elem(o->type, opt_array_pelem(o, array, i));
      } else {
          // shift existing elements to the end
          memmove(opt_array_pelem(o, array, start_elem + nb_elems),
                  opt_array_pelem(o, array, start_elem),
                  elem_size * (*array_size - start_elem));
      }

      memcpy((uint8_t*)array + elem_size * start_elem, new_elems, elem_size * nb_elems);

      av_freep(&new_elems);
      nb_elems = 0;

      *(void**)parray = array;
      *array_size     = new_size;
  }

2445fail:
  opt_free_array(o, &new_elems, &nb_elems);

  return ret;
2449}

2451int av_opt_query_ranges(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
2452{
  int ret;
  const AVClass *c = *(AVClass**)obj;
  int (*callback)(AVOptionRanges **, void *obj, const char *key, int flags) = c->query_ranges;

  if (!callback)
      callback = av_opt_query_ranges_default;

  ret = callback(ranges_arg, obj, key, flags);
  if (ret >= 0) {
      if (!(flags & AV_OPT_MULTI_COMPONENT_RANGE(1 << 12)))
          ret = 1;
      (*ranges_arg)->nb_components = ret;
  }
  return ret;
2467}

2469int av_opt_query_ranges_default(AVOptionRanges **ranges_arg, void *obj, const char *key, int flags)
2470{
  AVOptionRanges *ranges = av_mallocz(sizeof(*ranges));
  AVOptionRange **range_array = av_mallocz(sizeof(void*));
  AVOptionRange *range = av_mallocz(sizeof(*range));
  const AVOption *field = av_opt_find(obj, key, NULL((void*)0), 0, flags);
  int ret;

  *ranges_arg = NULL((void*)0);

  if (!ranges || !range || !range_array || !field) {
      ret = AVERROR(ENOMEM)(-(12));
      goto fail;
  }

  ranges->range = range_array;
  ranges->range[0] = range;
  ranges->nb_ranges = 1;
  ranges->nb_components = 1;
  range->is_range = 1;
  range->value_min = field->min;
  range->value_max = field->max;

  switch (field->type) {
  case AV_OPT_TYPE_BOOL:
  case AV_OPT_TYPE_INT:
  case AV_OPT_TYPE_UINT:
  case AV_OPT_TYPE_INT64:
  case AV_OPT_TYPE_UINT64:
  case AV_OPT_TYPE_PIXEL_FMT:
  case AV_OPT_TYPE_SAMPLE_FMT:
  case AV_OPT_TYPE_FLOAT:
  case AV_OPT_TYPE_DOUBLE:
  case AV_OPT_TYPE_DURATION:
  case AV_OPT_TYPE_COLOR:
      break;
  case AV_OPT_TYPE_STRING:
      range->component_min = 0;
      range->component_max = 0x10FFFF; // max unicode value
      range->value_min = -1;
      range->value_max = INT_MAX2147483647;
      break;
  case AV_OPT_TYPE_RATIONAL:
      range->component_min = INT_MIN(-2147483647 -1);
      range->component_max = INT_MAX2147483647;
      break;
  case AV_OPT_TYPE_IMAGE_SIZE:
      range->component_min = 0;
      range->component_max = INT_MAX2147483647/128/8;
      range->value_min = 0;
      range->value_max = INT_MAX2147483647/8;
      break;
  case AV_OPT_TYPE_VIDEO_RATE:
      range->component_min = 1;
      range->component_max = INT_MAX2147483647;
      range->value_min = 1;
      range->value_max = INT_MAX2147483647;
      break;
  default:
      ret = AVERROR(ENOSYS)(-(38));
      goto fail;
  }

  *ranges_arg = ranges;
  return 1;
2534fail:
  av_free(ranges);
  av_free(range);
  av_free(range_array);
  return ret;
2539}

2541void av_opt_freep_ranges(AVOptionRanges **rangesp)
2542{
  int i;
  AVOptionRanges *ranges = *rangesp;

  if (!ranges)
      return;

  for (i = 0; i < ranges->nb_ranges * ranges->nb_components; i++) {
      AVOptionRange *range = ranges->range[i];
      if (range) {
          av_freep(&range->str);
          av_freep(&ranges->range[i]);
      }
  }
  av_freep(&ranges->range);
  av_freep(rangesp);
2558}

2560int av_opt_is_set_to_default(void *obj, const AVOption *o)
2561{
  int64_t i64;
  double d;
  AVRational q;
  int ret, w, h;
  char *str;
  void *dst;

  if (!o17.1
'o' is non-null
 || !obj17.2
'obj' is non-null
)
18
←
Taking false branch→
      return AVERROR(EINVAL)(-(22));

  dst = ((uint8_t*)obj) + o->offset;

  if (o->type & AV_OPT_TYPE_FLAG_ARRAY) {
19
←
Assuming the condition is true→
      const char *def = o->default_val.arr ? o->default_val.arr->def : NULL((void*)0);
20
←
Taking true branch→
21
←
Assuming field 'arr' is null→
22
←
'?' condition is false→
      uint8_t *val;

      ret = opt_get_array(o, dst, &val);
23
←
Calling 'opt_get_array'→
      if (ret < 0)
          return ret;

      if (!!val != !!def)
          ret = 0;
      else if (val)
          ret = !strcmp(val, def);
      else
          ret = 1;

      av_freep(&val);

      return ret;
  }

  switch (o->type) {
  case AV_OPT_TYPE_CONST:
      return 1;
  case AV_OPT_TYPE_BOOL:
  case AV_OPT_TYPE_FLAGS:
  case AV_OPT_TYPE_PIXEL_FMT:
  case AV_OPT_TYPE_SAMPLE_FMT:
  case AV_OPT_TYPE_INT:
  case AV_OPT_TYPE_UINT:
  case AV_OPT_TYPE_DURATION:
  case AV_OPT_TYPE_INT64:
  case AV_OPT_TYPE_UINT64:
      read_number(o, dst, NULL((void*)0), NULL((void*)0), &i64);
      return o->default_val.i64 == i64;
  case AV_OPT_TYPE_CHLAYOUT: {
      AVChannelLayout ch_layout = { 0 };
      if (o->default_val.str) {
          if ((ret = av_channel_layout_from_string(&ch_layout, o->default_val.str)) < 0)
              return ret;
      }
      ret = !av_channel_layout_compare((AVChannelLayout *)dst, &ch_layout);
      av_channel_layout_uninit(&ch_layout);
      return ret;
  }
  case AV_OPT_TYPE_STRING:
      str = *(char **)dst;
      if (str == o->default_val.str) //2 NULLs
          return 1;
      if (!str || !o->default_val.str) //1 NULL
          return 0;
      return !strcmp(str, o->default_val.str);
  case AV_OPT_TYPE_DOUBLE:
      d = *(double *)dst;
      return o->default_val.dbl == d;
  case AV_OPT_TYPE_FLOAT:
      d = *(float *)dst;
      return (float)o->default_val.dbl == d;
  case AV_OPT_TYPE_RATIONAL:
      q = av_d2q(o->default_val.dbl, INT_MAX2147483647);
      return !av_cmp_q(*(AVRational*)dst, q);
  case AV_OPT_TYPE_BINARY: {
      struct {
          uint8_t *data;
          int size;
      } tmp = {0};
      int opt_size = *(int *)((void **)dst + 1);
      void *opt_ptr = *(void **)dst;
      if (!opt_size && (!o->default_val.str || !strlen(o->default_val.str)))
          return 1;
      if (!opt_size ||  !o->default_val.str || !strlen(o->default_val.str ))
          return 0;
      if (opt_size != strlen(o->default_val.str) / 2)
          return 0;
      ret = set_string_binary(NULL((void*)0), NULL((void*)0), o->default_val.str, &tmp.data);
      if (!ret)
          ret = !memcmp(opt_ptr, tmp.data, tmp.size);
      av_free(tmp.data);
      return ret;
  }
  case AV_OPT_TYPE_DICT: {
      AVDictionary *dict1 = NULL((void*)0);
      AVDictionary *dict2 = *(AVDictionary **)dst;
      const AVDictionaryEntry *en1 = NULL((void*)0);
      const AVDictionaryEntry *en2 = NULL((void*)0);
      ret = av_dict_parse_string(&dict1, o->default_val.str, "=", ":", 0);
      if (ret < 0) {
          av_dict_free(&dict1);
          return ret;
      }
      do {
          en1 = av_dict_iterate(dict1, en1);
          en2 = av_dict_iterate(dict2, en2);
      } while (en1 && en2 && !strcmp(en1->key, en2->key) && !strcmp(en1->value, en2->value));
      av_dict_free(&dict1);
      return (!en1 && !en2);
  }
  case AV_OPT_TYPE_IMAGE_SIZE:
      if (!o->default_val.str || !strcmp(o->default_val.str, "none"))
          w = h = 0;
      else if ((ret = av_parse_video_size(&w, &h, o->default_val.str)) < 0)
          return ret;
      return (w == *(int *)dst) && (h == *((int *)dst+1));
  case AV_OPT_TYPE_VIDEO_RATE:
      q = (AVRational){0, 0};
      if (o->default_val.str) {
          if ((ret = av_parse_video_rate(&q, o->default_val.str)) < 0)
              return ret;
      }
      return !av_cmp_q(*(AVRational*)dst, q);
  case AV_OPT_TYPE_COLOR: {
      uint8_t color[4] = {0, 0, 0, 0};
      if (o->default_val.str) {
          if ((ret = av_parse_color(color, o->default_val.str, -1, NULL((void*)0))) < 0)
              return ret;
      }
      return !memcmp(color, dst, sizeof(color));
  }
  default:
      av_log(obj, AV_LOG_WARNING24, "Not supported option type: %d, option name: %s\n", o->type, o->name);
      break;
  }
  return AVERROR_PATCHWELCOME(-(int)(('P') | (('A') << 8) | (('W') << 16) | ((
unsigned)('E') << 24)));
2696}

2698int av_opt_is_set_to_default_by_name(void *obj, const char *name, int search_flags)
2699{
  const AVOption *o;
  void *target;
  if (!obj)
      return AVERROR(EINVAL)(-(22));
  o = av_opt_find2(obj, name, NULL((void*)0), 0, search_flags, &target);
  if (!o)
      return AVERROR_OPTION_NOT_FOUND(-(int)((0xF8) | (('O') << 8) | (('P') << 16) | (
(unsigned)('T') << 24)));
  return av_opt_is_set_to_default(target, o);
2708}

2710static int opt_serialize(void *obj, int opt_flags, int flags, int *cnt,
                       AVBPrint *bprint, const char key_val_sep, const char pairs_sep)
2712{
  const AVOption *o = NULL((void*)0);
  void *child = NULL((void*)0);
  uint8_t *buf;
  int ret;
  const char special_chars[] = {pairs_sep, key_val_sep, '\0'};

  if (flags & AV_OPT_SERIALIZE_SEARCH_CHILDREN0x00000004)
10
←
Assuming the condition is false→
11
←
Taking false branch→
      while (child = av_opt_child_next(obj, child)) {
          ret = opt_serialize(child, opt_flags, flags, cnt, bprint,
                              key_val_sep, pairs_sep);
          if (ret < 0)
              return ret;
      }

  while (o = av_opt_next(obj, o)) {
12
←
Loop condition is true.  Entering loop body→
      if (o->type == AV_OPT_TYPE_CONST)
13
←
Assuming field 'type' is not equal to AV_OPT_TYPE_CONST→
          continue;
      if ((flags & AV_OPT_SERIALIZE_OPT_FLAGS_EXACT0x00000002) && o->flags != opt_flags)
14
←
Assuming the condition is false→
          continue;
      else if (((o->flags & opt_flags) != opt_flags))
15
←
Assuming the condition is false→
          continue;
      if (flags & AV_OPT_SERIALIZE_SKIP_DEFAULTS0x00000001 && av_opt_is_set_to_default(obj, o) > 0)
16
←
Assuming the condition is true→
17
←
Calling 'av_opt_is_set_to_default'→
          continue;
      if ((ret = av_opt_get(obj, o->name, 0, &buf)) < 0) {
          av_bprint_finalize(bprint, NULL((void*)0));
          return ret;
      }
      if (buf) {
          if ((*cnt)++)
              av_bprint_append_data(bprint, &pairs_sep, 1);
          av_bprint_escape(bprint, o->name, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0);
          av_bprint_append_data(bprint, &key_val_sep, 1);
          av_bprint_escape(bprint, buf, special_chars, AV_ESCAPE_MODE_BACKSLASH, 0);
          av_freep(&buf);
      }
  }

  return 0;
2751}

2753int av_opt_serialize(void *obj, int opt_flags, int flags, char **buffer,
                   const char key_val_sep, const char pairs_sep)
2755{
  AVBPrint bprint;
  int ret, cnt = 0;

  if (pairs_sep == '\0' || key_val_sep == '\0' || pairs_sep == key_val_sep ||
1
Assuming the condition is false→
2
←
Assuming the condition is false→
3
←
Assuming 'pairs_sep' is not equal to 'key_val_sep'→
      pairs_sep == '\\' || key_val_sep == '\\') {
4
←
Assuming the condition is false→
5
←
Assuming the condition is false→
      av_log(obj, AV_LOG_ERROR16, "Invalid separator(s) found.");
      return AVERROR(EINVAL)(-(22));
  }

  if (!obj || !buffer)
6
←
Assuming 'obj' is non-null→
7
←
Assuming 'buffer' is non-null→
8
←
Taking false branch→
      return AVERROR(EINVAL)(-(22));

  *buffer = NULL((void*)0);
  av_bprint_init(&bprint, 64, AV_BPRINT_SIZE_UNLIMITED((unsigned)-1));

  ret = opt_serialize(obj, opt_flags, flags, &cnt, &bprint,
9
←
Calling 'opt_serialize'→
                      key_val_sep, pairs_sep);
  if (ret < 0)
      return ret;

  ret = av_bprint_finalize(&bprint, buffer);
  if (ret < 0)
      return ret;
  return 0;
2780}