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User application side of Codec specific parameters.

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Originally committed as revision 25266 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2010-09-29 23:06:51 +00:00
parent f34fcdc8b6
commit 0093ebc20a
5 changed files with 77 additions and 46 deletions
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28
cmdutils.c
View File

@ -49,6 +49,7 @@
#endif
const char **opt_names;
const char **opt_values;
static int opt_name_count;
AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB];
AVFormatContext *avformat_opts;
@ -220,15 +221,25 @@ int opt_default(const char *opt, const char *arg){
exit(1);
}
if (!o) {
AVCodec *p = NULL;
while ((p=av_codec_next(p))){
AVClass *c= p->priv_class;
if(c && av_find_opt(&c, opt, NULL, 0, 0))
break;
}
if(!p){
fprintf(stderr, "Unrecognized option '%s'\n", opt);
exit(1);
}
}
// av_log(NULL, AV_LOG_ERROR, "%s:%s: %f 0x%0X\n", opt, arg, av_get_double(avcodec_opts, opt, NULL), (int)av_get_int(avcodec_opts, opt, NULL));
//FIXME we should always use avcodec_opts, ... for storing options so there will not be any need to keep track of what i set over this
opt_values= av_realloc(opt_values, sizeof(void*)*(opt_name_count+1));
opt_values[opt_name_count]= o ? NULL : arg;
opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1));
opt_names[opt_name_count++]= o->name;
opt_names[opt_name_count++]= o ? o->name : opt;
if ((*avcodec_opts && avcodec_opts[0]->debug) || (avformat_opts && avformat_opts->debug))
av_log_set_level(AV_LOG_DEBUG);
@ -283,9 +294,16 @@ int opt_timelimit(const char *opt, const char *arg)
return 0;
}
void set_context_opts(void *ctx, void *opts_ctx, int flags)
void set_context_opts(void *ctx, void *opts_ctx, int flags, AVCodec *codec)
{
int i;
void *priv_ctx=NULL;
if(!strcmp("AVCodecContext", (*(AVClass**)ctx)->class_name)){
AVCodecContext *avctx= ctx;
if(codec && codec->priv_class && avctx->priv_data){
priv_ctx= avctx->priv_data;
}
}
for(i=0; i<opt_name_count; i++){
char buf[256];
const AVOption *opt;
@ -293,6 +311,12 @@ void set_context_opts(void *ctx, void *opts_ctx, int flags)
/* if an option with name opt_names[i] is present in opts_ctx then str is non-NULL */
if(str && ((opt->flags & flags) == flags))
av_set_string3(ctx, opt_names[i], str, 1, NULL);
/* We need to use a differnt system to pass options to the private context because
it is not known which codec and thus context kind that will be when parsing options
we thus use opt_values directly instead of opts_ctx */
if(!str && priv_ctx && av_get_string(priv_ctx, opt_names[i], &opt, buf, sizeof(buf))){
av_set_string3(priv_ctx, opt_names[i], opt_values[i], 1, NULL);
}
}
}

2
cmdutils.h
View File

@ -138,7 +138,7 @@ void show_help_options(const OptionDef *options, const char *msg, int mask, int
void parse_options(int argc, char **argv, const OptionDef *options,
void (* parse_arg_function)(const char*));
void set_context_opts(void *ctx, void *opts_ctx, int flags);
void set_context_opts(void *ctx, void *opts_ctx, int flags, AVCodec *codec);
/**
* Print an error message to stderr, indicating filename and a human

87
ffmpeg.c
View File

@ -3155,7 +3155,7 @@ static void opt_input_file(const char *filename)
ap->channel = video_channel;
ap->standard = video_standard;
set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
ic->video_codec_id =
find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0,
@ -3235,13 +3235,13 @@ static void opt_input_file(const char *filename)
avcodec_thread_init(dec, thread_count);
switch (dec->codec_type) {
case AVMEDIA_TYPE_AUDIO:
set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_icodecs-1]);
//fprintf(stderr, "\nInput Audio channels: %d", dec->channels);
channel_layout = dec->channel_layout;
audio_channels = dec->channels;
audio_sample_rate = dec->sample_rate;
audio_sample_fmt = dec->sample_fmt;
input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(audio_codec_name);
if(audio_disable)
st->discard= AVDISCARD_ALL;
/* Note that av_find_stream_info can add more streams, and we
@ -3251,7 +3251,8 @@ static void opt_input_file(const char *filename)
audio_sample_rate >>= dec->lowres;
break;
case AVMEDIA_TYPE_VIDEO:
set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM);
input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
set_context_opts(dec, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, input_codecs[nb_icodecs-1]);
frame_height = dec->height;
frame_width = dec->width;
if(ic->streams[i]->sample_aspect_ratio.num)
@ -3282,7 +3283,6 @@ static void opt_input_file(const char *filename)
frame_rate.num = rfps;
frame_rate.den = rfps_base;
input_codecs[nb_icodecs++] = avcodec_find_decoder_by_name(video_codec_name);
if(video_disable)
st->discard= AVDISCARD_ALL;
else if(video_discard)
@ -3361,13 +3361,27 @@ static void new_video_stream(AVFormatContext *oc)
AVStream *st;
AVCodecContext *video_enc;
enum CodecID codec_id;
AVCodec *codec= NULL;
st = av_new_stream(oc, streamid_map[oc->nb_streams]);
if (!st) {
fprintf(stderr, "Could not alloc stream\n");
ffmpeg_exit(1);
}
avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_VIDEO);
if(!video_stream_copy){
if (video_codec_name) {
codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
codec = avcodec_find_encoder_by_name(video_codec_name);
output_codecs[nb_ocodecs] = codec;
} else {
codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
codec = avcodec_find_encoder(codec_id);
}
}
avcodec_get_context_defaults3(st->codec, codec);
bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
video_bitstream_filters= NULL;
@ -3396,22 +3410,10 @@ static void new_video_stream(AVFormatContext *oc)
} else {
const char *p;
int i;
AVCodec *codec;
AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};
if (video_codec_name) {
codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
avcodec_opts[AVMEDIA_TYPE_VIDEO]->strict_std_compliance);
codec = avcodec_find_encoder_by_name(video_codec_name);
output_codecs[nb_ocodecs] = codec;
} else {
codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
codec = avcodec_find_encoder(codec_id);
}
video_enc->codec_id = codec_id;
set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
if (codec && codec->supported_framerates && !force_fps)
fps = codec->supported_framerates[av_find_nearest_q_idx(fps, codec->supported_framerates)];
@ -3497,6 +3499,7 @@ static void new_video_stream(AVFormatContext *oc)
static void new_audio_stream(AVFormatContext *oc)
{
AVStream *st;
AVCodec *codec= NULL;
AVCodecContext *audio_enc;
enum CodecID codec_id;
@ -3505,7 +3508,20 @@ static void new_audio_stream(AVFormatContext *oc)
fprintf(stderr, "Could not alloc stream\n");
ffmpeg_exit(1);
}
avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_AUDIO);
if(!audio_stream_copy){
if (audio_codec_name) {
codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
codec = avcodec_find_encoder_by_name(audio_codec_name);
output_codecs[nb_ocodecs] = codec;
} else {
codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
codec = avcodec_find_encoder(codec_id);
}
}
avcodec_get_context_defaults3(st->codec, codec);
bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
audio_bitstream_filters= NULL;
@ -3527,20 +3543,8 @@ static void new_audio_stream(AVFormatContext *oc)
audio_enc->channels = audio_channels;
audio_enc->sample_rate = audio_sample_rate;
} else {
AVCodec *codec;
set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
if (audio_codec_name) {
codec_id = find_codec_or_die(audio_codec_name, AVMEDIA_TYPE_AUDIO, 1,
avcodec_opts[AVMEDIA_TYPE_AUDIO]->strict_std_compliance);
codec = avcodec_find_encoder_by_name(audio_codec_name);
output_codecs[nb_ocodecs] = codec;
} else {
codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_AUDIO);
codec = avcodec_find_encoder(codec_id);
}
audio_enc->codec_id = codec_id;
set_context_opts(audio_enc, avcodec_opts[AVMEDIA_TYPE_AUDIO], AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
if (audio_qscale > QSCALE_NONE) {
audio_enc->flags |= CODEC_FLAG_QSCALE;
@ -3571,6 +3575,7 @@ static void new_audio_stream(AVFormatContext *oc)
static void new_subtitle_stream(AVFormatContext *oc)
{
AVStream *st;
AVCodec *codec=NULL;
AVCodecContext *subtitle_enc;
st = av_new_stream(oc, streamid_map[oc->nb_streams]);
@ -3578,12 +3583,17 @@ static void new_subtitle_stream(AVFormatContext *oc)
fprintf(stderr, "Could not alloc stream\n");
ffmpeg_exit(1);
}
avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_SUBTITLE);
subtitle_enc = st->codec;
if(!subtitle_stream_copy){
subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
codec= output_codecs[nb_ocodecs] = avcodec_find_encoder_by_name(subtitle_codec_name);
}
avcodec_get_context_defaults3(st->codec, codec);
bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
subtitle_bitstream_filters= NULL;
subtitle_enc = st->codec;
subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
if(subtitle_codec_tag)
@ -3592,10 +3602,7 @@ static void new_subtitle_stream(AVFormatContext *oc)
if (subtitle_stream_copy) {
st->stream_copy = 1;
} else {
set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 1,
avcodec_opts[AVMEDIA_TYPE_SUBTITLE]->strict_std_compliance);
output_codecs[nb_ocodecs] = avcodec_find_encoder_by_name(subtitle_codec_name);
set_context_opts(avcodec_opts[AVMEDIA_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM, codec);
}
nb_ocodecs++;
@ -3791,7 +3798,7 @@ static void opt_output_file(const char *filename)
oc->loop_output = loop_output;
oc->flags |= AVFMT_FLAG_NONBLOCK;
set_context_opts(oc, avformat_opts, AV_OPT_FLAG_ENCODING_PARAM);
set_context_opts(oc, avformat_opts, AV_OPT_FLAG_ENCODING_PARAM, NULL);
memset(streamid_map, 0, sizeof(streamid_map));
}

4
ffplay.c
View File

@ -2280,7 +2280,7 @@ static int stream_component_open(VideoState *is, int stream_index)
avctx->error_concealment= error_concealment;
avcodec_thread_init(avctx, thread_count);
set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0);
set_context_opts(avctx, avcodec_opts[avctx->codec_type], 0, codec);
if (!codec ||
avcodec_open(avctx, codec) < 0)
@ -2458,7 +2458,7 @@ static int decode_thread(void *arg)
ap->time_base= (AVRational){1, 25};
ap->pix_fmt = frame_pix_fmt;
set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
if (err < 0) {

2
ffprobe.c
View File

@ -269,7 +269,7 @@ static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename)
AVFormatContext *fmt_ctx;
fmt_ctx = avformat_alloc_context();
set_context_opts(fmt_ctx, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
set_context_opts(fmt_ctx, avformat_opts, AV_OPT_FLAG_DECODING_PARAM, NULL);
if ((err = av_open_input_file(&fmt_ctx, filename, iformat, 0, NULL)) < 0) {
print_error(filename, err);