vf_gradfun: move x86 init code to x86/gradfun.c

[ffmpeg] / libavformat / mp3dec.c

diff --git a/libavformat/mp3dec.c b/libavformat/mp3dec.c
index 09494de13656b0287c68bb3f41185d44dfe53738..39875201e36b3636ae7319d31705f21c74974b77 100644 (file)
--- a/libavformat/mp3dec.c
+++ b/libavformat/mp3dec.c
@@ -24,6 +24,7 @@
 #include "libavutil/dict.h"
 #include "libavutil/mathematics.h"
 #include "avformat.h"
+#include "internal.h"
 #include "id3v2.h"
 #include "id3v1.h"
 #include "libavcodec/mpegaudiodecheader.h"
@@ -51,7 +52,7 @@ static int mp3_read_probe(AVProbeData *p)
 
         for(frames = 0; buf2 < end; frames++) {
             header = AV_RB32(buf2);
-            fsize = ff_mpa_decode_header(&avctx, header, &sample_rate, &sample_rate, &sample_rate, &sample_rate);
+            fsize = avpriv_mpa_decode_header(&avctx, header, &sample_rate, &sample_rate, &sample_rate, &sample_rate);
             if(fsize < 0)
                 break;
             buf2 += fsize;
@@ -62,11 +63,31 @@ static int mp3_read_probe(AVProbeData *p)
     }
     // keep this in sync with ac3 probe, both need to avoid
     // issues with MPEG-files!
-    if   (first_frames>=4) return AVPROBE_SCORE_MAX/2+1;
-    else if(max_frames>500)return AVPROBE_SCORE_MAX/2;
-    else if(max_frames>=4) return AVPROBE_SCORE_MAX/4;
-    else if(max_frames>=1) return 1;
-    else                   return 0;
+    if (first_frames >= 4) return AVPROBE_SCORE_MAX / 2 + 1;
+
+    if (max_frames) {
+        int pes = 0, i;
+        unsigned int code = -1;
+
+#define VIDEO_ID 0x000001e0
+#define AUDIO_ID 0x000001c0
+        /* do a search for mpegps headers to be able to properly bias
+         * towards mpegps if we detect this stream as both. */
+        for (i = 0; i<p->buf_size; i++) {
+            code = (code << 8) + p->buf[i];
+            if ((code & 0xffffff00) == 0x100) {
+                if     ((code & 0x1f0) == VIDEO_ID) pes++;
+                else if((code & 0x1e0) == AUDIO_ID) pes++;
+            }
+        }
+
+        if (pes)
+            max_frames = (max_frames + pes - 1) / pes;
+    }
+    if      (max_frames >  500) return AVPROBE_SCORE_MAX / 2;
+    else if (max_frames >= 4)   return AVPROBE_SCORE_MAX / 4;
+    else if (max_frames >= 1)   return 1;
+    else                        return 0;
 //mpegps_mp3_unrecognized_format.mpg has max_frames=3
 }
 
@@ -86,7 +107,7 @@ static int mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base)
     if(ff_mpa_check_header(v) < 0)
       return -1;
 
-    if (ff_mpegaudio_decode_header(&c, v) == 0)
+    if (avpriv_mpegaudio_decode_header(&c, v) == 0)
         vbrtag_size = c.frame_size;
     if(c.layer != 3)
         return -1;
@@ -110,8 +131,8 @@ static int mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base)
         if(avio_rb16(s->pb) == 1) {
             /* skip delay and quality */
             avio_skip(s->pb, 4);
-            frames = avio_rb32(s->pb);
             size = avio_rb32(s->pb);
+            frames = avio_rb32(s->pb);
         }
     }
 
@@ -131,8 +152,7 @@ static int mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base)
     return 0;
 }
 
-static int mp3_read_header(AVFormatContext *s,
-                           AVFormatParameters *ap)
+static int mp3_read_header(AVFormatContext *s)
 {
     AVStream *st;
     int64_t off;
@@ -147,7 +167,7 @@ static int mp3_read_header(AVFormatContext *s,
     st->start_time = 0;
 
     // lcm of all mp3 sample rates
-    av_set_pts_info(st, 64, 1, 14112000);
+    avpriv_set_pts_info(st, 64, 1, 14112000);
 
     off = avio_tell(s->pb);
 
@@ -193,6 +213,6 @@ AVInputFormat ff_mp3_demuxer = {
     .read_probe     = mp3_read_probe,
     .read_header    = mp3_read_header,
     .read_packet    = mp3_read_packet,
-    .flags= AVFMT_GENERIC_INDEX,
-    .extensions = "mp2,mp3,m2a", /* XXX: use probe */
+    .flags          = AVFMT_GENERIC_INDEX,
+    .extensions     = "mp2,mp3,m2a", /* XXX: use probe */
 };