lavf: deprecate r_frame_rate.

[ffmpeg] / libavformat / mpc8.c

diff --git a/libavformat/mpc8.c b/libavformat/mpc8.c
index 00217fa2ab66c0e7ce55c243762eb084b54ec02f..93848f4ebf902c9c729988c6ede59488b86daa4e 100644 (file)
--- a/libavformat/mpc8.c
+++ b/libavformat/mpc8.c
@@ -2,26 +2,29 @@
  * Musepack SV8 demuxer
  * Copyright (c) 2007 Konstantin Shishkov
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #include "libavcodec/get_bits.h"
 #include "libavcodec/unary.h"
+#include "apetag.h"
 #include "avformat.h"
+#include "internal.h"
+#include "avio_internal.h"
 
 /// Two-byte MPC tag
 #define MKMPCTAG(a, b) (a | (b << 8))
@@ -122,7 +125,7 @@ static void mpc8_get_chunk_header(AVIOContext *pb, int *tag, int64_t *size)
     int64_t pos;
     pos = avio_tell(pb);
     *tag = avio_rl16(pb);
-    *size = ff_get_v(pb);
+    *size = ffio_read_varlen(pb);
     *size -= avio_tell(pb) - pos;
 }
 
@@ -177,7 +180,7 @@ static void mpc8_handle_chunk(AVFormatContext *s, int tag, int64_t chunk_pos, in
     switch(tag){
     case TAG_SEEKTBLOFF:
         pos = avio_tell(pb) + size;
-        off = ff_get_v(pb);
+        off = ffio_read_varlen(pb);
         mpc8_parse_seektable(s, chunk_pos + off);
         avio_seek(pb, pos, SEEK_SET);
         break;
@@ -186,7 +189,7 @@ static void mpc8_handle_chunk(AVFormatContext *s, int tag, int64_t chunk_pos, in
     }
 }
 
-static int mpc8_read_header(AVFormatContext *s, AVFormatParameters *ap)
+static int mpc8_read_header(AVFormatContext *s)
 {
     MPCContext *c = s->priv_data;
     AVIOContext *pb = s->pb;
@@ -218,10 +221,10 @@ static int mpc8_read_header(AVFormatContext *s, AVFormatParameters *ap)
         av_log(s, AV_LOG_ERROR, "Unknown stream version %d\n", c->ver);
         return -1;
     }
-    c->samples = ff_get_v(pb);
-    ff_get_v(pb); //silence samples at the beginning
+    c->samples = ffio_read_varlen(pb);
+    ffio_read_varlen(pb); //silence samples at the beginning
 
-    st = av_new_stream(s, 0);
+    st = avformat_new_stream(s, NULL);
     if (!st)
         return AVERROR(ENOMEM);
     st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
@@ -234,10 +237,16 @@ static int mpc8_read_header(AVFormatContext *s, AVFormatParameters *ap)
 
     st->codec->channels = (st->codec->extradata[1] >> 4) + 1;
     st->codec->sample_rate = mpc8_rate[st->codec->extradata[0] >> 5];
-    av_set_pts_info(st, 32, 1152  << (st->codec->extradata[1]&3)*2, st->codec->sample_rate);
+    avpriv_set_pts_info(st, 32, 1152  << (st->codec->extradata[1]&3)*2, st->codec->sample_rate);
     st->duration = c->samples / (1152 << (st->codec->extradata[1]&3)*2);
     size -= avio_tell(pb) - pos;
 
+    if (pb->seekable) {
+        int64_t pos = avio_tell(s->pb);
+        ff_ape_parse_tag(s);
+        avio_seek(s->pb, pos, SEEK_SET);
+    }
+
     return 0;
 }
 
@@ -263,7 +272,7 @@ static int mpc8_read_packet(AVFormatContext *s, AVPacket *pkt)
             return AVERROR(EIO);
         mpc8_handle_chunk(s, tag, pos, size);
     }
-    return 0;
+    return AVERROR_EOF;
 }
 
 static int mpc8_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
@@ -273,19 +282,19 @@ static int mpc8_read_seek(AVFormatContext *s, int stream_index, int64_t timestam
     int index = av_index_search_timestamp(st, timestamp, flags);
 
     if(index < 0) return -1;
-    avio_seek(s->pb, st->index_entries[index].pos, SEEK_SET);
+    if (avio_seek(s->pb, st->index_entries[index].pos, SEEK_SET) < 0)
+        return -1;
     c->frame = st->index_entries[index].timestamp;
     return 0;
 }
 
 
 AVInputFormat ff_mpc8_demuxer = {
-    "mpc8",
-    NULL_IF_CONFIG_SMALL("Musepack SV8"),
-    sizeof(MPCContext),
-    mpc8_probe,
-    mpc8_read_header,
-    mpc8_read_packet,
-    NULL,
-    mpc8_read_seek,
+    .name           = "mpc8",
+    .long_name      = NULL_IF_CONFIG_SMALL("Musepack SV8"),
+    .priv_data_size = sizeof(MPCContext),
+    .read_probe     = mpc8_probe,
+    .read_header    = mpc8_read_header,
+    .read_packet    = mpc8_read_packet,
+    .read_seek      = mpc8_read_seek,
 };