X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Faea.c;h=fc914f08fb82514933db3aeaa8784ca868bf71da;hb=8ca39b855a7b0e4d9f726fa9d285bc8edcb953e6;hp=ec95a0f92c8bb946d5c58cdb5c17385d3eb9b5ea;hpb=72415b2adb2c25f95ceede49001bb97ed9247dbb;p=ffmpeg

diff --git a/libavformat/aea.c b/libavformat/aea.c
index ec95a0f92c8..fc914f08fb8 100644
--- a/libavformat/aea.c
+++ b/libavformat/aea.c
@@ -3,30 +3,27 @@
  *
  * Copyright (c) 2009 Benjamin Larsson
  *
- * 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
  */
 
-/**
- * @file libavformat/aea.c
- */
-
-#include "avformat.h"
-#include "raw.h"
+#include "libavutil/channel_layout.h"
 #include "libavutil/intreadwrite.h"
+#include "avformat.h"
+#include "pcm.h"
 
 #define AT1_SU_SIZE     212
 
@@ -35,7 +32,7 @@ static int aea_read_probe(AVProbeData *p)
     if (p->buf_size <= 2048+212)
         return 0;
 
-    /* Magic is '00 08 00 00' in Little Endian*/
+    /* Magic is '00 08 00 00' in little-endian*/
     if (AV_RL32(p->buf)==0x800) {
         int bsm_s, bsm_e, inb_s, inb_e, ch;
         ch    = p->buf[264];
@@ -50,46 +47,44 @@ static int aea_read_probe(AVProbeData *p)
         /* Check so that the redundant bsm bytes and info bytes are valid
          * the block size mode bytes have to be the same
          * the info bytes have to be the same
-         * the block size mode and info byte can't be the same
          */
-        if (bsm_s == bsm_e && inb_s == inb_e && bsm_s != inb_s)
-            return AVPROBE_SCORE_MAX / 2;
+        if (bsm_s == bsm_e && inb_s == inb_e)
+            return AVPROBE_SCORE_MAX / 4 + 1;
     }
     return 0;
 }
 
-static int aea_read_header(AVFormatContext *s,
-                           AVFormatParameters *ap)
+static int aea_read_header(AVFormatContext *s)
 {
-    AVStream *st = av_new_stream(s, 0);
+    AVStream *st = avformat_new_stream(s, NULL);
     if (!st)
         return AVERROR(ENOMEM);
 
     /* Parse the amount of channels and skip to pos 2048(0x800) */
-    url_fskip(s->pb, 264);
-    st->codec->channels = get_byte(s->pb);
-    url_fskip(s->pb, 1783);
+    avio_skip(s->pb, 264);
+    st->codecpar->channels = avio_r8(s->pb);
+    avio_skip(s->pb, 1783);
 
 
-    st->codec->codec_type     = AVMEDIA_TYPE_AUDIO;
-    st->codec->codec_id       = CODEC_ID_ATRAC1;
-    st->codec->sample_rate    = 44100;
-    st->codec->bit_rate       = 292000;
+    st->codecpar->codec_type     = AVMEDIA_TYPE_AUDIO;
+    st->codecpar->codec_id       = AV_CODEC_ID_ATRAC1;
+    st->codecpar->sample_rate    = 44100;
+    st->codecpar->bit_rate       = 292000;
 
-    if (st->codec->channels != 1 && st->codec->channels != 2) {
-        av_log(s,AV_LOG_ERROR,"Channels %d not supported!\n",st->codec->channels);
-        return -1;
+    if (st->codecpar->channels != 1 && st->codecpar->channels != 2) {
+        av_log(s, AV_LOG_ERROR, "Channels %d not supported!\n", st->codecpar->channels);
+        return AVERROR_INVALIDDATA;
     }
 
-    st->codec->channel_layout = (st->codec->channels == 1) ? CH_LAYOUT_MONO : CH_LAYOUT_STEREO;
+    st->codecpar->channel_layout = (st->codecpar->channels == 1) ? AV_CH_LAYOUT_MONO : AV_CH_LAYOUT_STEREO;
 
-    st->codec->block_align = AT1_SU_SIZE * st->codec->channels;
+    st->codecpar->block_align = AT1_SU_SIZE * st->codecpar->channels;
     return 0;
 }
 
 static int aea_read_packet(AVFormatContext *s, AVPacket *pkt)
 {
-    int ret = av_get_packet(s->pb, pkt, s->streams[0]->codec->block_align);
+    int ret = av_get_packet(s->pb, pkt, s->streams[0]->codecpar->block_align);
 
     pkt->stream_index = 0;
     if (ret <= 0)
@@ -98,16 +93,13 @@ static int aea_read_packet(AVFormatContext *s, AVPacket *pkt)
     return ret;
 }
 
-AVInputFormat aea_demuxer = {
-    "aea",
-    NULL_IF_CONFIG_SMALL("MD STUDIO audio"),
-    0,
-    aea_read_probe,
-    aea_read_header,
-    aea_read_packet,
-    0,
-    pcm_read_seek,
-    .flags= AVFMT_GENERIC_INDEX,
-    .extensions = "aea",
+AVInputFormat ff_aea_demuxer = {
+    .name           = "aea",
+    .long_name      = NULL_IF_CONFIG_SMALL("MD STUDIO audio"),
+    .read_probe     = aea_read_probe,
+    .read_header    = aea_read_header,
+    .read_packet    = aea_read_packet,
+    .read_seek      = ff_pcm_read_seek,
+    .flags          = AVFMT_GENERIC_INDEX,
+    .extensions     = "aea",
 };
-