svq3: Do initialization after parsing the extradata

[ffmpeg] / libavformat / mpc8.c

diff --git a/libavformat/mpc8.c b/libavformat/mpc8.c
index d40a602e83f0ca7d0362c3a085becd57b2514e34..c4810f6eafaafac7c9b0d43463e63e7c8558515d 100644 (file)
--- a/libavformat/mpc8.c
+++ b/libavformat/mpc8.c
@@ -2,26 +2,27 @@
  * 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 "avformat.h"
+#include "avio_internal.h"
 
 /// Two-byte MPC tag
 #define MKMPCTAG(a, b) (a | (b << 8))
@@ -120,10 +121,10 @@ static inline int64_t gb_get_v(GetBitContext *gb)
 static void mpc8_get_chunk_header(AVIOContext *pb, int *tag, int64_t *size)
 {
     int64_t pos;
-    pos = url_ftell(pb);
-    *tag = get_le16(pb);
-    *size = ff_get_v(pb);
-    *size -= url_ftell(pb) - pos;
+    pos = avio_tell(pb);
+    *tag = avio_rl16(pb);
+    *size = ffio_read_varlen(pb);
+    *size -= avio_tell(pb) - pos;
 }
 
 static void mpc8_parse_seektable(AVFormatContext *s, int64_t off)
@@ -135,7 +136,7 @@ static void mpc8_parse_seektable(AVFormatContext *s, int64_t off)
     int i, t, seekd;
     GetBitContext gb;
 
-    url_fseek(s->pb, off, SEEK_SET);
+    avio_seek(s->pb, off, SEEK_SET);
     mpc8_get_chunk_header(s->pb, &tag, &size);
     if(tag != TAG_SEEKTABLE){
         av_log(s, AV_LOG_ERROR, "No seek table at given position\n");
@@ -143,7 +144,7 @@ static void mpc8_parse_seektable(AVFormatContext *s, int64_t off)
     }
     if(!(buf = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE)))
         return;
-    get_buffer(s->pb, buf, size);
+    avio_read(s->pb, buf, size);
     init_get_bits(&gb, buf, size * 8);
     size = gb_get_v(&gb);
     if(size > UINT_MAX/4 || size > c->samples/1152){
@@ -176,13 +177,13 @@ static void mpc8_handle_chunk(AVFormatContext *s, int tag, int64_t chunk_pos, in
 
     switch(tag){
     case TAG_SEEKTBLOFF:
-        pos = url_ftell(pb) + size;
-        off = ff_get_v(pb);
+        pos = avio_tell(pb) + size;
+        off = ffio_read_varlen(pb);
         mpc8_parse_seektable(s, chunk_pos + off);
-        url_fseek(pb, pos, SEEK_SET);
+        avio_seek(pb, pos, SEEK_SET);
         break;
     default:
-        url_fskip(pb, size);
+        avio_skip(pb, size);
     }
 }
 
@@ -194,14 +195,14 @@ static int mpc8_read_header(AVFormatContext *s, AVFormatParameters *ap)
     int tag = 0;
     int64_t size, pos;
 
-    c->header_pos = url_ftell(pb);
-    if(get_le32(pb) != TAG_MPCK){
+    c->header_pos = avio_tell(pb);
+    if(avio_rl32(pb) != TAG_MPCK){
         av_log(s, AV_LOG_ERROR, "Not a Musepack8 file\n");
         return -1;
     }
 
-    while(!url_feof(pb)){
-        pos = url_ftell(pb);
+    while(!pb->eof_reached){
+        pos = avio_tell(pb);
         mpc8_get_chunk_header(pb, &tag, &size);
         if(tag == TAG_STREAMHDR)
             break;
@@ -211,15 +212,15 @@ static int mpc8_read_header(AVFormatContext *s, AVFormatParameters *ap)
         av_log(s, AV_LOG_ERROR, "Stream header not found\n");
         return -1;
     }
-    pos = url_ftell(pb);
-    url_fskip(pb, 4); //CRC
-    c->ver = get_byte(pb);
+    pos = avio_tell(pb);
+    avio_skip(pb, 4); //CRC
+    c->ver = avio_r8(pb);
     if(c->ver != 8){
         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);
     if (!st)
@@ -230,13 +231,13 @@ static int mpc8_read_header(AVFormatContext *s, AVFormatParameters *ap)
 
     st->codec->extradata_size = 2;
     st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
-    get_buffer(pb, st->codec->extradata, st->codec->extradata_size);
+    avio_read(pb, st->codec->extradata, st->codec->extradata_size);
 
     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);
     st->duration = c->samples / (1152 << (st->codec->extradata[1]&3)*2);
-    size -= url_ftell(pb) - pos;
+    size -= avio_tell(pb) - pos;
 
     return 0;
 }
@@ -247,8 +248,8 @@ static int mpc8_read_packet(AVFormatContext *s, AVPacket *pkt)
     int tag;
     int64_t pos, size;
 
-    while(!url_feof(s->pb)){
-        pos = url_ftell(s->pb);
+    while(!s->pb->eof_reached){
+        pos = avio_tell(s->pb);
         mpc8_get_chunk_header(s->pb, &tag, &size);
         if (size < 0)
             return -1;
@@ -273,7 +274,7 @@ 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;
-    url_fseek(s->pb, st->index_entries[index].pos, SEEK_SET);
+    avio_seek(s->pb, st->index_entries[index].pos, SEEK_SET);
     c->frame = st->index_entries[index].timestamp;
     return 0;
 }