Proper PTS generation for Smacker audio

Originally committed as revision 5390 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/smacker.c

@@ -63,6 +63,7 @@ typedef struct SmackerContext {
     int stream_id[7];
     int curstream;
     offset_t nextpos;
+    int64_t aud_pts[7];
 } SmackerContext;
 
 typedef struct SmackerFrame {
@@ -171,7 +172,6 @@ static int smacker_read_header(AVFormatContext *s, AVFormatParameters *ap)
         if((smk->rates[i] & 0xFFFFFF) && !(smk->rates[i] & SMK_AUD_BINKAUD)){
             ast[i] = av_new_stream(s, 0);
             smk->indexes[i] = ast[i]->index;
-            av_set_pts_info(ast[i], 33, smk->pts_inc, tbase);
             ast[i]->codec->codec_type = CODEC_TYPE_AUDIO;
             ast[i]->codec->codec_id = (smk->rates[i] & SMK_AUD_PACKED) ? CODEC_ID_SMACKAUDIO : CODEC_ID_PCM_U8;
             ast[i]->codec->codec_tag = MKTAG('S', 'M', 'K', 'A');
@@ -180,6 +180,8 @@ static int smacker_read_header(AVFormatContext *s, AVFormatParameters *ap)
             ast[i]->codec->bits_per_sample = (smk->rates[i] & SMK_AUD_16BITS) ? 16 : 8;
             if(ast[i]->codec->bits_per_sample == 16 && ast[i]->codec->codec_id == CODEC_ID_PCM_U8)
                 ast[i]->codec->codec_id = CODEC_ID_PCM_S16LE;
+            av_set_pts_info(ast[i], 64, 1, ast[i]->codec->sample_rate
+                    * ast[i]->codec->channels * ast[i]->codec->bits_per_sample / 8);
         }
     }
 
@@ -306,6 +308,8 @@ static int smacker_read_packet(AVFormatContext *s, AVPacket *pkt)
         memcpy(pkt->data, smk->bufs[smk->curstream], smk->buf_sizes[smk->curstream]);
         pkt->size = smk->buf_sizes[smk->curstream];
         pkt->stream_index = smk->stream_id[smk->curstream];
+        pkt->pts = smk->aud_pts[smk->curstream];
+        smk->aud_pts[smk->curstream] += LE_32(pkt->data);
         smk->curstream--;
     }