O_DIRECT works!!!

[frescor/ffmpeg.git] / libavformat / sol.c

diff --git a/libavformat/sol.c b/libavformat/sol.c
index 70dab2ac128d9ed1242d142092c5350fb5bea08c..aa566647bb15a2e86d8d065ccea8d001d4392701 100644 (file)
--- a/libavformat/sol.c
+++ b/libavformat/sol.c
@@ -1,39 +1,39 @@
-/* 
- * Sierra SOL decoder
- * Copyright Konstantin Shishkov.
+/*
+ * Sierra SOL demuxer
+ * Copyright Konstantin Shishkov
  *
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-/* 
+/*
  * Based on documents from Game Audio Player and own research
  */
 
+#include "libavutil/bswap.h"
 #include "avformat.h"
-#include "avi.h"
-#include "bswap.h"
+#include "raw.h"
 
 /* if we don't know the size in advance */
-#define AU_UNKOWN_SIZE ((uint32_t)(~0))
+#define AU_UNKNOWN_SIZE ((uint32_t)(~0))
 
 static int sol_probe(AVProbeData *p)
 {
     /* check file header */
     uint16_t magic;
-    if (p->buf_size <= 14)
-        return 0;
     magic=le2me_16(*((uint16_t*)p->buf));
     if ((magic == 0x0B8D || magic == 0x0C0D || magic == 0x0C8D) &&
         p->buf[2] == 'S' && p->buf[3] == 'O' &&
@@ -47,7 +47,7 @@ static int sol_probe(AVProbeData *p)
 #define SOL_16BIT   4
 #define SOL_STEREO 16
 
-static int sol_codec_id(int magic, int type)
+static enum CodecID sol_codec_id(int magic, int type)
 {
     if (magic == 0x0B8D)
     {
@@ -81,14 +81,15 @@ static int sol_channels(int magic, int type)
     if (magic == 0x0B8D || !(type & SOL_STEREO)) return 1;
     return 2;
 }
-    
+
 static int sol_read_header(AVFormatContext *s,
                           AVFormatParameters *ap)
 {
     int size;
     unsigned int magic,tag;
-    ByteIOContext *pb = &s->pb;
-    unsigned int id, codec, channels, rate, type;
+    ByteIOContext *pb = s->pb;
+    unsigned int id, channels, rate, type;
+    enum CodecID codec;
     AVStream *st;
 
     /* check ".snd" header */
@@ -101,14 +102,14 @@ static int sol_read_header(AVFormatContext *s,
     size = get_le32(pb);
     if (magic != 0x0B8D)
         get_byte(pb); /* newer SOLs contain padding byte */
-    
+
     codec = sol_codec_id(magic, type);
     channels = sol_channels(magic, type);
-    
+
     if (codec == CODEC_ID_SOL_DPCM)
         id = sol_codec_type(magic, type);
     else id = 0;
-    
+
     /* now we are ready: build format streams */
     st = av_new_stream(s, 0);
     if (!st)
@@ -117,7 +118,7 @@ static int sol_read_header(AVFormatContext *s,
     st->codec->codec_tag = id;
     st->codec->codec_id = codec;
     st->codec->channels = channels;
-    st->codec->sample_rate = rate;    
+    st->codec->sample_rate = rate;
     av_set_pts_info(st, 64, 1, rate);
     return 0;
 }
@@ -129,9 +130,9 @@ static int sol_read_packet(AVFormatContext *s,
 {
     int ret;
 
-    if (url_feof(&s->pb))
-        return -EIO;
-    ret= av_get_packet(&s->pb, pkt, MAX_SIZE);
+    if (url_feof(s->pb))
+        return AVERROR(EIO);
+    ret= av_get_packet(s->pb, pkt, MAX_SIZE);
     pkt->stream_index = 0;
 
     /* note: we need to modify the packet size here to handle the last
@@ -140,24 +141,13 @@ static int sol_read_packet(AVFormatContext *s,
     return 0;
 }
 
-static int sol_read_close(AVFormatContext *s)
-{
-    return 0;
-}
-
-static AVInputFormat sol_iformat = {
+AVInputFormat sol_demuxer = {
     "sol",
-    "Sierra SOL Format",
+    NULL_IF_CONFIG_SMALL("Sierra SOL format"),
     0,
     sol_probe,
     sol_read_header,
     sol_read_packet,
-    sol_read_close,
+    NULL,
     pcm_read_seek,
 };
-
-int sol_init(void)
-{
-    av_register_input_format(&sol_iformat);
-    return 0;
-}