mirror of https://git.ffmpeg.org/ffmpeg.git
avformat/utils: Move matching stream specificiers to avformat.c
It is not to call this with a muxer, so move it to avformat.c and not demux_utils.c. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
parent
217f2bfb49
commit
682d42b41d
|
@ -21,9 +21,12 @@
|
|||
|
||||
#include "libavutil/avassert.h"
|
||||
#include "libavutil/avstring.h"
|
||||
#include "libavutil/channel_layout.h"
|
||||
#include "libavutil/intreadwrite.h"
|
||||
#include "libavutil/mem.h"
|
||||
#include "libavutil/opt.h"
|
||||
#include "libavutil/pixfmt.h"
|
||||
#include "libavutil/samplefmt.h"
|
||||
#include "libavcodec/avcodec.h"
|
||||
#include "libavcodec/bsf.h"
|
||||
#include "libavcodec/packet_internal.h"
|
||||
|
@ -257,6 +260,182 @@ void av_program_add_stream_index(AVFormatContext *ac, int progid, unsigned idx)
|
|||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Matches a stream specifier (but ignores requested index).
|
||||
*
|
||||
* @param indexptr set to point to the requested stream index if there is one
|
||||
*
|
||||
* @return <0 on error
|
||||
* 0 if st is NOT a matching stream
|
||||
* >0 if st is a matching stream
|
||||
*/
|
||||
static int match_stream_specifier(const AVFormatContext *s, const AVStream *st,
|
||||
const char *spec, const char **indexptr,
|
||||
const AVProgram **p)
|
||||
{
|
||||
int match = 1; /* Stores if the specifier matches so far. */
|
||||
while (*spec) {
|
||||
if (*spec <= '9' && *spec >= '0') { /* opt:index */
|
||||
if (indexptr)
|
||||
*indexptr = spec;
|
||||
return match;
|
||||
} else if (*spec == 'v' || *spec == 'a' || *spec == 's' || *spec == 'd' ||
|
||||
*spec == 't' || *spec == 'V') { /* opt:[vasdtV] */
|
||||
enum AVMediaType type;
|
||||
int nopic = 0;
|
||||
|
||||
switch (*spec++) {
|
||||
case 'v': type = AVMEDIA_TYPE_VIDEO; break;
|
||||
case 'a': type = AVMEDIA_TYPE_AUDIO; break;
|
||||
case 's': type = AVMEDIA_TYPE_SUBTITLE; break;
|
||||
case 'd': type = AVMEDIA_TYPE_DATA; break;
|
||||
case 't': type = AVMEDIA_TYPE_ATTACHMENT; break;
|
||||
case 'V': type = AVMEDIA_TYPE_VIDEO; nopic = 1; break;
|
||||
default: av_assert0(0);
|
||||
}
|
||||
if (*spec && *spec++ != ':') /* If we are not at the end, then another specifier must follow. */
|
||||
return AVERROR(EINVAL);
|
||||
|
||||
if (type != st->codecpar->codec_type)
|
||||
match = 0;
|
||||
if (nopic && (st->disposition & AV_DISPOSITION_ATTACHED_PIC))
|
||||
match = 0;
|
||||
} else if (*spec == 'p' && *(spec + 1) == ':') {
|
||||
int prog_id;
|
||||
int found = 0;
|
||||
char *endptr;
|
||||
spec += 2;
|
||||
prog_id = strtol(spec, &endptr, 0);
|
||||
/* Disallow empty id and make sure that if we are not at the end, then another specifier must follow. */
|
||||
if (spec == endptr || (*endptr && *endptr++ != ':'))
|
||||
return AVERROR(EINVAL);
|
||||
spec = endptr;
|
||||
if (match) {
|
||||
for (unsigned i = 0; i < s->nb_programs; i++) {
|
||||
if (s->programs[i]->id != prog_id)
|
||||
continue;
|
||||
|
||||
for (unsigned j = 0; j < s->programs[i]->nb_stream_indexes; j++) {
|
||||
if (st->index == s->programs[i]->stream_index[j]) {
|
||||
found = 1;
|
||||
if (p)
|
||||
*p = s->programs[i];
|
||||
i = s->nb_programs;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
if (!found)
|
||||
match = 0;
|
||||
} else if (*spec == '#' ||
|
||||
(*spec == 'i' && *(spec + 1) == ':')) {
|
||||
int stream_id;
|
||||
char *endptr;
|
||||
spec += 1 + (*spec == 'i');
|
||||
stream_id = strtol(spec, &endptr, 0);
|
||||
if (spec == endptr || *endptr) /* Disallow empty id and make sure we are at the end. */
|
||||
return AVERROR(EINVAL);
|
||||
return match && (stream_id == st->id);
|
||||
} else if (*spec == 'm' && *(spec + 1) == ':') {
|
||||
const AVDictionaryEntry *tag;
|
||||
char *key, *val;
|
||||
int ret;
|
||||
|
||||
if (match) {
|
||||
spec += 2;
|
||||
val = strchr(spec, ':');
|
||||
|
||||
key = val ? av_strndup(spec, val - spec) : av_strdup(spec);
|
||||
if (!key)
|
||||
return AVERROR(ENOMEM);
|
||||
|
||||
tag = av_dict_get(st->metadata, key, NULL, 0);
|
||||
if (tag) {
|
||||
if (!val || !strcmp(tag->value, val + 1))
|
||||
ret = 1;
|
||||
else
|
||||
ret = 0;
|
||||
} else
|
||||
ret = 0;
|
||||
|
||||
av_freep(&key);
|
||||
}
|
||||
return match && ret;
|
||||
} else if (*spec == 'u' && *(spec + 1) == '\0') {
|
||||
const AVCodecParameters *par = st->codecpar;
|
||||
int val;
|
||||
switch (par->codec_type) {
|
||||
case AVMEDIA_TYPE_AUDIO:
|
||||
val = par->sample_rate && par->ch_layout.nb_channels;
|
||||
if (par->format == AV_SAMPLE_FMT_NONE)
|
||||
return 0;
|
||||
break;
|
||||
case AVMEDIA_TYPE_VIDEO:
|
||||
val = par->width && par->height;
|
||||
if (par->format == AV_PIX_FMT_NONE)
|
||||
return 0;
|
||||
break;
|
||||
case AVMEDIA_TYPE_UNKNOWN:
|
||||
val = 0;
|
||||
break;
|
||||
default:
|
||||
val = 1;
|
||||
break;
|
||||
}
|
||||
return match && (par->codec_id != AV_CODEC_ID_NONE && val != 0);
|
||||
} else {
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
}
|
||||
|
||||
return match;
|
||||
}
|
||||
|
||||
int avformat_match_stream_specifier(AVFormatContext *s, AVStream *st,
|
||||
const char *spec)
|
||||
{
|
||||
int ret, index;
|
||||
char *endptr;
|
||||
const char *indexptr = NULL;
|
||||
const AVProgram *p = NULL;
|
||||
int nb_streams;
|
||||
|
||||
ret = match_stream_specifier(s, st, spec, &indexptr, &p);
|
||||
if (ret < 0)
|
||||
goto error;
|
||||
|
||||
if (!indexptr)
|
||||
return ret;
|
||||
|
||||
index = strtol(indexptr, &endptr, 0);
|
||||
if (*endptr) { /* We can't have anything after the requested index. */
|
||||
ret = AVERROR(EINVAL);
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* This is not really needed but saves us a loop for simple stream index specifiers. */
|
||||
if (spec == indexptr)
|
||||
return (index == st->index);
|
||||
|
||||
/* If we requested a matching stream index, we have to ensure st is that. */
|
||||
nb_streams = p ? p->nb_stream_indexes : s->nb_streams;
|
||||
for (int i = 0; i < nb_streams && index >= 0; i++) {
|
||||
const AVStream *candidate = s->streams[p ? p->stream_index[i] : i];
|
||||
ret = match_stream_specifier(s, candidate, spec, NULL, NULL);
|
||||
if (ret < 0)
|
||||
goto error;
|
||||
if (ret > 0 && index-- == 0 && st == candidate)
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
|
||||
error:
|
||||
if (ret == AVERROR(EINVAL))
|
||||
av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int avformat_transfer_internal_stream_timing_info(const AVOutputFormat *ofmt,
|
||||
AVStream *ost, const AVStream *ist,
|
||||
enum AVTimebaseSource copy_tb)
|
||||
|
|
|
@ -26,9 +26,7 @@
|
|||
#include "libavutil/avassert.h"
|
||||
#include "libavutil/avstring.h"
|
||||
#include "libavutil/bprint.h"
|
||||
#include "libavutil/dict.h"
|
||||
#include "libavutil/internal.h"
|
||||
#include "libavutil/pixfmt.h"
|
||||
#include "libavutil/thread.h"
|
||||
#include "libavutil/time.h"
|
||||
|
||||
|
@ -855,183 +853,6 @@ AVRational av_guess_frame_rate(AVFormatContext *format, AVStream *st, AVFrame *f
|
|||
return fr;
|
||||
}
|
||||
|
||||
/**
|
||||
* Matches a stream specifier (but ignores requested index).
|
||||
*
|
||||
* @param indexptr set to point to the requested stream index if there is one
|
||||
*
|
||||
* @return <0 on error
|
||||
* 0 if st is NOT a matching stream
|
||||
* >0 if st is a matching stream
|
||||
*/
|
||||
static int match_stream_specifier(const AVFormatContext *s, const AVStream *st,
|
||||
const char *spec, const char **indexptr,
|
||||
const AVProgram **p)
|
||||
{
|
||||
int match = 1; /* Stores if the specifier matches so far. */
|
||||
while (*spec) {
|
||||
if (*spec <= '9' && *spec >= '0') { /* opt:index */
|
||||
if (indexptr)
|
||||
*indexptr = spec;
|
||||
return match;
|
||||
} else if (*spec == 'v' || *spec == 'a' || *spec == 's' || *spec == 'd' ||
|
||||
*spec == 't' || *spec == 'V') { /* opt:[vasdtV] */
|
||||
enum AVMediaType type;
|
||||
int nopic = 0;
|
||||
|
||||
switch (*spec++) {
|
||||
case 'v': type = AVMEDIA_TYPE_VIDEO; break;
|
||||
case 'a': type = AVMEDIA_TYPE_AUDIO; break;
|
||||
case 's': type = AVMEDIA_TYPE_SUBTITLE; break;
|
||||
case 'd': type = AVMEDIA_TYPE_DATA; break;
|
||||
case 't': type = AVMEDIA_TYPE_ATTACHMENT; break;
|
||||
case 'V': type = AVMEDIA_TYPE_VIDEO; nopic = 1; break;
|
||||
default: av_assert0(0);
|
||||
}
|
||||
if (*spec && *spec++ != ':') /* If we are not at the end, then another specifier must follow. */
|
||||
return AVERROR(EINVAL);
|
||||
|
||||
if (type != st->codecpar->codec_type)
|
||||
match = 0;
|
||||
if (nopic && (st->disposition & AV_DISPOSITION_ATTACHED_PIC))
|
||||
match = 0;
|
||||
} else if (*spec == 'p' && *(spec + 1) == ':') {
|
||||
int prog_id;
|
||||
int found = 0;
|
||||
char *endptr;
|
||||
spec += 2;
|
||||
prog_id = strtol(spec, &endptr, 0);
|
||||
/* Disallow empty id and make sure that if we are not at the end, then another specifier must follow. */
|
||||
if (spec == endptr || (*endptr && *endptr++ != ':'))
|
||||
return AVERROR(EINVAL);
|
||||
spec = endptr;
|
||||
if (match) {
|
||||
for (unsigned i = 0; i < s->nb_programs; i++) {
|
||||
if (s->programs[i]->id != prog_id)
|
||||
continue;
|
||||
|
||||
for (unsigned j = 0; j < s->programs[i]->nb_stream_indexes; j++) {
|
||||
if (st->index == s->programs[i]->stream_index[j]) {
|
||||
found = 1;
|
||||
if (p)
|
||||
*p = s->programs[i];
|
||||
i = s->nb_programs;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
if (!found)
|
||||
match = 0;
|
||||
} else if (*spec == '#' ||
|
||||
(*spec == 'i' && *(spec + 1) == ':')) {
|
||||
int stream_id;
|
||||
char *endptr;
|
||||
spec += 1 + (*spec == 'i');
|
||||
stream_id = strtol(spec, &endptr, 0);
|
||||
if (spec == endptr || *endptr) /* Disallow empty id and make sure we are at the end. */
|
||||
return AVERROR(EINVAL);
|
||||
return match && (stream_id == st->id);
|
||||
} else if (*spec == 'm' && *(spec + 1) == ':') {
|
||||
const AVDictionaryEntry *tag;
|
||||
char *key, *val;
|
||||
int ret;
|
||||
|
||||
if (match) {
|
||||
spec += 2;
|
||||
val = strchr(spec, ':');
|
||||
|
||||
key = val ? av_strndup(spec, val - spec) : av_strdup(spec);
|
||||
if (!key)
|
||||
return AVERROR(ENOMEM);
|
||||
|
||||
tag = av_dict_get(st->metadata, key, NULL, 0);
|
||||
if (tag) {
|
||||
if (!val || !strcmp(tag->value, val + 1))
|
||||
ret = 1;
|
||||
else
|
||||
ret = 0;
|
||||
} else
|
||||
ret = 0;
|
||||
|
||||
av_freep(&key);
|
||||
}
|
||||
return match && ret;
|
||||
} else if (*spec == 'u' && *(spec + 1) == '\0') {
|
||||
const AVCodecParameters *par = st->codecpar;
|
||||
int val;
|
||||
switch (par->codec_type) {
|
||||
case AVMEDIA_TYPE_AUDIO:
|
||||
val = par->sample_rate && par->ch_layout.nb_channels;
|
||||
if (par->format == AV_SAMPLE_FMT_NONE)
|
||||
return 0;
|
||||
break;
|
||||
case AVMEDIA_TYPE_VIDEO:
|
||||
val = par->width && par->height;
|
||||
if (par->format == AV_PIX_FMT_NONE)
|
||||
return 0;
|
||||
break;
|
||||
case AVMEDIA_TYPE_UNKNOWN:
|
||||
val = 0;
|
||||
break;
|
||||
default:
|
||||
val = 1;
|
||||
break;
|
||||
}
|
||||
return match && (par->codec_id != AV_CODEC_ID_NONE && val != 0);
|
||||
} else {
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
}
|
||||
|
||||
return match;
|
||||
}
|
||||
|
||||
|
||||
int avformat_match_stream_specifier(AVFormatContext *s, AVStream *st,
|
||||
const char *spec)
|
||||
{
|
||||
int ret, index;
|
||||
char *endptr;
|
||||
const char *indexptr = NULL;
|
||||
const AVProgram *p = NULL;
|
||||
int nb_streams;
|
||||
|
||||
ret = match_stream_specifier(s, st, spec, &indexptr, &p);
|
||||
if (ret < 0)
|
||||
goto error;
|
||||
|
||||
if (!indexptr)
|
||||
return ret;
|
||||
|
||||
index = strtol(indexptr, &endptr, 0);
|
||||
if (*endptr) { /* We can't have anything after the requested index. */
|
||||
ret = AVERROR(EINVAL);
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* This is not really needed but saves us a loop for simple stream index specifiers. */
|
||||
if (spec == indexptr)
|
||||
return (index == st->index);
|
||||
|
||||
/* If we requested a matching stream index, we have to ensure st is that. */
|
||||
nb_streams = p ? p->nb_stream_indexes : s->nb_streams;
|
||||
for (int i = 0; i < nb_streams && index >= 0; i++) {
|
||||
const AVStream *candidate = s->streams[p ? p->stream_index[i] : i];
|
||||
ret = match_stream_specifier(s, candidate, spec, NULL, NULL);
|
||||
if (ret < 0)
|
||||
goto error;
|
||||
if (ret > 0 && index-- == 0 && st == candidate)
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
|
||||
error:
|
||||
if (ret == AVERROR(EINVAL))
|
||||
av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
|
||||
return ret;
|
||||
}
|
||||
|
||||
void ff_format_io_close_default(AVFormatContext *s, AVIOContext *pb)
|
||||
{
|
||||
avio_close(pb);
|
||||
|
|
Loading…
Reference in New Issue