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fftools/ffmpeg_mux_init: restructure output stream creation

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Creating a new output stream of a given type is currently done by
calling new_<type>_stream(), which all start by calling
new_output_stream() to allocate the stream and do common init, followed
by type-specific init.

Reverse this structure - the caller now calls the common function
ost_add() with the type as a parameter, which then calls the
type-specific function internally. This will allow adding common code
that runs after type-specific code in future commits.
pull/389/head
Anton Khirnov 2 years ago
parent a7f26b1c63
commit 9bae55165d
1 changed files with 35 additions and 54 deletions
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  1. 89
      fftools/ffmpeg_mux_init.c

89
fftools/ffmpeg_mux_init.c
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@ -418,9 +418,6 @@ static MuxStream *mux_stream_alloc(Muxer *mux, enum AVMediaType type)
return ms;
}
static OutputStream *new_output_stream(Muxer *mux, const OptionsContext *o,
enum AVMediaType type, InputStream *ist);
static char *get_ost_filters(const OptionsContext *o, AVFormatContext *oc,
OutputStream *ost)
{
@ -471,14 +468,13 @@ static void parse_matrix_coeffs(void *logctx, uint16_t *dest, const char *str)
}
}
static OutputStream *new_video_stream(Muxer *mux, const OptionsContext *o, InputStream *ist)
static void new_stream_video(Muxer *mux, const OptionsContext *o,
OutputStream *ost)
{
AVFormatContext *oc = mux->fc;
AVStream *st;
OutputStream *ost;
char *frame_rate = NULL, *max_frame_rate = NULL, *frame_aspect_ratio = NULL;
ost = new_output_stream(mux, o, AVMEDIA_TYPE_VIDEO, ist);
st = ost->st;
MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
@ -703,17 +699,14 @@ static OutputStream *new_video_stream(Muxer *mux, const OptionsContext *o, Input
exit_program(1);
} else
check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_VIDEO);
return ost;
}
static OutputStream *new_audio_stream(Muxer *mux, const OptionsContext *o, InputStream *ist)
static void new_stream_audio(Muxer *mux, const OptionsContext *o,
OutputStream *ost)
{
AVFormatContext *oc = mux->fc;
AVStream *st;
OutputStream *ost;
ost = new_output_stream(mux, o, AVMEDIA_TYPE_AUDIO, ist);
st = ost->st;
@ -801,49 +794,37 @@ static OutputStream *new_audio_stream(Muxer *mux, const OptionsContext *o, Input
#endif
} else
check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_AUDIO);
return ost;
}
static OutputStream *new_data_stream(Muxer *mux, const OptionsContext *o, InputStream *ist)
static void new_stream_data(Muxer *mux, const OptionsContext *o,
OutputStream *ost)
{
OutputStream *ost;
ost = new_output_stream(mux, o, AVMEDIA_TYPE_DATA, ist);
if (ost->enc_ctx) {
av_log(ost, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
exit_program(1);
}
return ost;
}
static OutputStream *new_unknown_stream(Muxer *mux, const OptionsContext *o, InputStream *ist)
static void new_stream_unknown(Muxer *mux, const OptionsContext *o,
OutputStream *ost)
{
OutputStream *ost;
ost = new_output_stream(mux, o, AVMEDIA_TYPE_UNKNOWN, ist);
if (ost->enc_ctx) {
av_log(ost, AV_LOG_FATAL, "Unknown stream encoding not supported yet (only streamcopy)\n");
exit_program(1);
}
return ost;
}
static OutputStream *new_attachment_stream(Muxer *mux, const OptionsContext *o, InputStream *ist)
static void new_stream_attachment(Muxer *mux, const OptionsContext *o,
OutputStream *ost)
{
OutputStream *ost = new_output_stream(mux, o, AVMEDIA_TYPE_ATTACHMENT, ist);
ost->finished = 1;
return ost;
}
static OutputStream *new_subtitle_stream(Muxer *mux, const OptionsContext *o, InputStream *ist)
static void new_stream_subtitle(Muxer *mux, const OptionsContext *o,
OutputStream *ost)
{
AVStream *st;
OutputStream *ost;
ost = new_output_stream(mux, o, AVMEDIA_TYPE_SUBTITLE, ist);
st = ost->st;
if (ost->enc_ctx) {
@ -856,12 +837,10 @@ static OutputStream *new_subtitle_stream(Muxer *mux, const OptionsContext *o, In
exit_program(1);
}
}
return ost;
}
static OutputStream *new_output_stream(Muxer *mux, const OptionsContext *o,
enum AVMediaType type, InputStream *ist)
static OutputStream *ost_add(Muxer *mux, const OptionsContext *o,
enum AVMediaType type, InputStream *ist)
{
AVFormatContext *oc = mux->fc;
MuxStream *ms;
@ -1101,6 +1080,15 @@ static OutputStream *new_output_stream(Muxer *mux, const OptionsContext *o,
MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i,
ost->copy_initial_nonkeyframes, oc, st);
switch (type) {
case AVMEDIA_TYPE_VIDEO: new_stream_video (mux, o, ost); break;
case AVMEDIA_TYPE_AUDIO: new_stream_audio (mux, o, ost); break;
case AVMEDIA_TYPE_SUBTITLE: new_stream_subtitle (mux, o, ost); break;
case AVMEDIA_TYPE_DATA: new_stream_data (mux, o, ost); break;
case AVMEDIA_TYPE_ATTACHMENT: new_stream_attachment(mux, o, ost); break;
default: new_stream_unknown (mux, o, ost); break;
}
return ost;
}
@ -1110,8 +1098,8 @@ static void init_output_filter(OutputFilter *ofilter, const OptionsContext *o,
OutputStream *ost;
switch (ofilter->type) {
case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(mux, o, NULL); break;
case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(mux, o, NULL); break;
case AVMEDIA_TYPE_VIDEO: ost = ost_add(mux, o, AVMEDIA_TYPE_VIDEO, NULL); break;
case AVMEDIA_TYPE_AUDIO: ost = ost_add(mux, o, AVMEDIA_TYPE_AUDIO, NULL); break;
default:
av_log(mux, AV_LOG_FATAL, "Only video and audio filters are supported "
"currently.\n");
@ -1193,7 +1181,7 @@ static void map_auto_video(Muxer *mux, const OptionsContext *o)
}
}
if (best_ist)
new_video_stream(mux, o, best_ist);
ost_add(mux, o, AVMEDIA_TYPE_VIDEO, best_ist);
}
static void map_auto_audio(Muxer *mux, const OptionsContext *o)
@ -1235,7 +1223,7 @@ static void map_auto_audio(Muxer *mux, const OptionsContext *o)
}
}
if (best_ist)
new_audio_stream(mux, o, best_ist);
ost_add(mux, o, AVMEDIA_TYPE_AUDIO, best_ist);
}
static void map_auto_subtitle(Muxer *mux, const OptionsContext *o)
@ -1270,7 +1258,7 @@ static void map_auto_subtitle(Muxer *mux, const OptionsContext *o)
input_descriptor && output_descriptor &&
(!input_descriptor->props ||
!output_descriptor->props)) {
new_subtitle_stream(mux, o, ist);
ost_add(mux, o, AVMEDIA_TYPE_SUBTITLE, ist);
break;
}
}
@ -1290,7 +1278,7 @@ static void map_auto_data(Muxer *mux, const OptionsContext *o)
continue;
if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_DATA &&
ist->st->codecpar->codec_id == codec_id )
new_data_stream(mux, o, ist);
ost_add(mux, o, AVMEDIA_TYPE_DATA, ist);
}
}
@ -1339,18 +1327,8 @@ loop_end:
if(o-> data_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_DATA)
return;
switch (ist->st->codecpar->codec_type) {
case AVMEDIA_TYPE_VIDEO: new_video_stream (mux, o, ist); break;
case AVMEDIA_TYPE_AUDIO: new_audio_stream (mux, o, ist); break;
case AVMEDIA_TYPE_SUBTITLE: new_subtitle_stream (mux, o, ist); break;
case AVMEDIA_TYPE_DATA: new_data_stream (mux, o, ist); break;
case AVMEDIA_TYPE_ATTACHMENT: new_attachment_stream(mux, o, ist); break;
case AVMEDIA_TYPE_UNKNOWN:
if (copy_unknown_streams) {
new_unknown_stream (mux, o, ist);
break;
}
default:
if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_UNKNOWN &&
!copy_unknown_streams) {
av_log(mux, ignore_unknown_streams ? AV_LOG_WARNING : AV_LOG_FATAL,
"Cannot map stream #%d:%d - unsupported type.\n",
map->file_index, map->stream_index);
@ -1361,7 +1339,10 @@ loop_end:
"If you want them copied, please use -copy_unknown\n");
exit_program(1);
}
return;
}
ost_add(mux, o, ist->st->codecpar->codec_type, ist);
}
}
@ -1395,7 +1376,7 @@ static void of_add_attachments(Muxer *mux, const OptionsContext *o)
avio_read(pb, attachment, len);
memset(attachment + len, 0, AV_INPUT_BUFFER_PADDING_SIZE);
ost = new_attachment_stream(mux, o, NULL);
ost = ost_add(mux, o, AVMEDIA_TYPE_ATTACHMENT, NULL);
ost->attachment_filename = o->attachments[i];
ost->st->codecpar->extradata = attachment;
ost->st->codecpar->extradata_size = len;

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