cmdutils: Pass the actual chosen encoder to filter_codec_opts

This allows passing the right options to encoders when there's more
than one encoder for a certain codec id.
Signed-off-by: Martin Storsjö <martin@martin.st>

avconv.c

@@ -3441,7 +3441,7 @@ static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
         ist->file_index = nb_input_files;
         ist->discard = 1;
         st->discard  = AVDISCARD_ALL;
-        ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st);
+        ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st, NULL);
 
         ist->ts_scale = 1.0;
         MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
@@ -3768,7 +3768,7 @@ static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, e
     st->codec->codec_type = type;
     choose_encoder(o, oc, ost);
     if (ost->enc) {
-        ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st);
+        ost->opts  = filter_codec_opts(codec_opts, ost->enc->id, oc, st, ost->enc);
     }
 
     avcodec_get_context_defaults3(st->codec, ost->enc);

avplay.c

@@ -2081,7 +2081,7 @@ static int stream_component_open(VideoState *is, int stream_index)
         return -1;
     avctx = ic->streams[stream_index]->codec;
 
-    opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index]);
+    opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], NULL);
 
     codec = avcodec_find_decoder(avctx->codec_id);
     avctx->debug_mv          = debug_mv;

cmdutils.c

@@ -948,17 +948,18 @@ int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
 }
 
 AVDictionary *filter_codec_opts(AVDictionary *opts, enum CodecID codec_id,
-                                AVFormatContext *s, AVStream *st)
+                                AVFormatContext *s, AVStream *st, AVCodec *codec)
 {
     AVDictionary    *ret = NULL;
     AVDictionaryEntry *t = NULL;
-    AVCodec       *codec = s->oformat ? avcodec_find_encoder(codec_id)
-                                      : avcodec_find_decoder(codec_id);
     int            flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
                                       : AV_OPT_FLAG_DECODING_PARAM;
     char          prefix = 0;
     const AVClass    *cc = avcodec_get_class();
 
+    if (!codec)
+        codec            = s->oformat ? avcodec_find_encoder(codec_id)
+                                      : avcodec_find_decoder(codec_id);
     if (!codec)
         return NULL;
 
@@ -1020,7 +1021,7 @@ AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
     }
     for (i = 0; i < s->nb_streams; i++)
         opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codec->codec_id,
-                                    s, s->streams[i]);
+                                    s, s->streams[i], NULL);
     return opts;
 }
 

cmdutils.h

@@ -214,10 +214,12 @@ int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec);
  *
  * @param s Corresponding format context.
  * @param st A stream from s for which the options should be filtered.
+ * @param codec The particular codec for which the options should be filtered.
+ *              If null, the default one is looked up according to the codec id.
  * @return a pointer to the created dictionary
  */
 AVDictionary *filter_codec_opts(AVDictionary *opts, enum CodecID codec_id,
-                                AVFormatContext *s, AVStream *st);
+                                AVFormatContext *s, AVStream *st, AVCodec *codec);
 
 /**
  * Setup AVCodecContext options for avformat_find_stream_info().