User application side of Codec specific parameters.
authorMichael Niedermayer <michaelni@gmx.at>
Wed, 29 Sep 2010 23:06:51 +0000 (23:06 +0000)
committerMichael Niedermayer <michaelni@gmx.at>
Wed, 29 Sep 2010 23:06:51 +0000 (23:06 +0000)
Originally committed as revision 25266 to svn://svn.ffmpeg.org/ffmpeg/trunk

cmdutils.c
cmdutils.h
ffmpeg.c
ffplay.c
ffprobe.c

index 4317584..ff39929 100644 (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);
+        }
     }
 }
 
index 61bcfdc..e753c43 100644 (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
index 056bd37..d9812be 100644 (file)
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -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));
 }
index 99932c5..2e61268 100644 (file)
--- a/ffplay.c
+++ b/ffplay.c
@@ -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) {
index 30cec12..ac908e1 100644 (file)
--- a/ffprobe.c
+++ b/ffprobe.c
@@ -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);