[FFmpeg-devel] [PATCH 4/7] avcocdec/mpegaudio_parser: add MP3 ADU headers parser

[Gilles Chanteperdrix]

---
 libavcodec/mpegaudio_parser.c   | 14 ++++++++++++--
 libavcodec/mpegaudiodecheader.c |  3 ++-
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/libavcodec/mpegaudio_parser.c b/libavcodec/mpegaudio_parser.c
index 79dbf63..42f4706 100644
--- a/libavcodec/mpegaudio_parser.c
+++ b/libavcodec/mpegaudio_parser.c
@@ -64,7 +64,7 @@ static int mpegaudio_parse(AVCodecParserContext *s1,
         }else{
             while(i<buf_size){
                 int ret, sr, channels, bit_rate, frame_size;
-                enum AVCodecID codec_id;
+                enum AVCodecID codec_id = avctx->codec_id;
 
                 state= (state<<8) + buf[i++];
 
@@ -90,6 +90,16 @@ static int mpegaudio_parse(AVCodecParserContext *s1,
                             avctx->bit_rate += (bit_rate - avctx->bit_rate) / 
(s->header_count - header_threshold);
                         }
                     }
+
+                    if (s1->flags & PARSER_FLAG_COMPLETE_FRAMES) {
+                        s->frame_size = 0;
+                        next = buf_size;
+                    } else if (codec_id == AV_CODEC_ID_MP3ADU) {
+                        av_log(avctx, AV_LOG_ERROR,
+                            "MP3ADU full parser not implemented");
+                        return AVERROR_PATCHWELCOME;
+                    }
+
                     break;
                 }
             }
@@ -110,7 +120,7 @@ static int mpegaudio_parse(AVCodecParserContext *s1,
 
 
 AVCodecParser ff_mpegaudio_parser = {
-    .codec_ids      = { AV_CODEC_ID_MP1, AV_CODEC_ID_MP2, AV_CODEC_ID_MP3 },
+    .codec_ids      = { AV_CODEC_ID_MP1, AV_CODEC_ID_MP2, AV_CODEC_ID_MP3, 
AV_CODEC_ID_MP3ADU },
     .priv_data_size = sizeof(MpegAudioParseContext),
     .parser_parse   = mpegaudio_parse,
     .parser_close   = ff_parse_close,
diff --git a/libavcodec/mpegaudiodecheader.c b/libavcodec/mpegaudiodecheader.c
index 5db1957..6af6e4b 100644
--- a/libavcodec/mpegaudiodecheader.c
+++ b/libavcodec/mpegaudiodecheader.c
@@ -134,7 +134,8 @@ int avpriv_mpa_decode_header2(uint32_t head, int 
*sample_rate, int *channels, in
         break;
     default:
     case 3:
-        *codec_id = AV_CODEC_ID_MP3;
+        if (*codec_id != AV_CODEC_ID_MP3ADU)
+            *codec_id = AV_CODEC_ID_MP3;
         if (s->lsf)
             *frame_size = 576;
         else
-- 
1.8.4

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