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fftools/ffmpeg_mux_init: move more code from of_open() to create_streams()

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Specificaly, the of_add_attachments() call (which can add attachment
streams to the output) and the check whether the output file contains
any streams. They both logically belong in create_streams().
This commit is contained in:
Anton Khirnov 2022-10-25 11:24:40 +02:00
parent 1b076556c6
commit 6a8145a4b1
1 changed files with 50 additions and 49 deletions
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99
fftools/ffmpeg_mux_init.c
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@ -1062,8 +1062,50 @@ loop_end:
}
}
static void of_add_attachments(Muxer *mux, const OptionsContext *o)
{
OutputStream *ost;
int err;
for (int i = 0; i < o->nb_attachments; i++) {
AVIOContext *pb;
uint8_t *attachment;
const char *p;
int64_t len;
if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
o->attachments[i]);
exit_program(1);
}
if ((len = avio_size(pb)) <= 0) {
av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
o->attachments[i]);
exit_program(1);
}
if (len > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE ||
!(attachment = av_malloc(len + AV_INPUT_BUFFER_PADDING_SIZE))) {
av_log(NULL, AV_LOG_FATAL, "Attachment %s too large.\n",
o->attachments[i]);
exit_program(1);
}
avio_read(pb, attachment, len);
memset(attachment + len, 0, AV_INPUT_BUFFER_PADDING_SIZE);
ost = new_attachment_stream(mux, o, -1);
ost->attachment_filename = o->attachments[i];
ost->st->codecpar->extradata = attachment;
ost->st->codecpar->extradata_size = len;
p = strrchr(o->attachments[i], '/');
av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
avio_closep(&pb);
}
}
static void create_streams(Muxer *mux, const OptionsContext *o)
{
AVFormatContext *oc = mux->fc;
int auto_disable_v = o->video_disable;
int auto_disable_a = o->audio_disable;
int auto_disable_s = o->subtitle_disable;
@ -1101,6 +1143,14 @@ static void create_streams(Muxer *mux, const OptionsContext *o)
for (int i = 0; i < o->nb_stream_maps; i++)
map_manual(mux, o, &o->stream_maps[i]);
}
of_add_attachments(mux, o);
if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
av_dump_format(oc, nb_output_files - 1, oc->url, 1);
av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", nb_output_files - 1);
exit_program(1);
}
}
static int setup_sync_queues(Muxer *mux, AVFormatContext *oc, int64_t buf_size_us)
@ -1194,47 +1244,6 @@ static int setup_sync_queues(Muxer *mux, AVFormatContext *oc, int64_t buf_size_u
return 0;
}
static void of_add_attachments(Muxer *mux, const OptionsContext *o)
{
OutputStream *ost;
int err;
for (int i = 0; i < o->nb_attachments; i++) {
AVIOContext *pb;
uint8_t *attachment;
const char *p;
int64_t len;
if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
o->attachments[i]);
exit_program(1);
}
if ((len = avio_size(pb)) <= 0) {
av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
o->attachments[i]);
exit_program(1);
}
if (len > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE ||
!(attachment = av_malloc(len + AV_INPUT_BUFFER_PADDING_SIZE))) {
av_log(NULL, AV_LOG_FATAL, "Attachment %s too large.\n",
o->attachments[i]);
exit_program(1);
}
avio_read(pb, attachment, len);
memset(attachment + len, 0, AV_INPUT_BUFFER_PADDING_SIZE);
ost = new_attachment_stream(mux, o, -1);
ost->attachment_filename = o->attachments[i];
ost->st->codecpar->extradata = attachment;
ost->st->codecpar->extradata_size = len;
p = strrchr(o->attachments[i], '/');
av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
avio_closep(&pb);
}
}
static void of_add_programs(AVFormatContext *oc, const OptionsContext *o)
{
/* process manually set programs */
@ -1782,14 +1791,6 @@ int of_open(const OptionsContext *o, const char *filename)
/* create all output streams for this file */
create_streams(mux, o);
of_add_attachments(mux, o);
if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
av_dump_format(oc, nb_output_files - 1, oc->url, 1);
av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", nb_output_files - 1);
exit_program(1);
}
/* check if all codec options have been used */
unused_opts = strip_specifiers(o->g->codec_opts);
for (int i = 0; i < of->nb_streams; i++) {