X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fsiff.c;h=cdb64528e528c999bc083347779ed660dae6dfcd;hb=5a9ee3152b6e69166c7819f07a4992bd22052917;hp=c8f892b8d53dcca2161e66f0971a31908035cd24;hpb=f094b6627db5d7e32bf03361ec060fa28b59564c;p=ffmpeg

diff --git a/libavformat/siff.c b/libavformat/siff.c
index c8f892b8d53..cdb64528e52 100644
--- a/libavformat/siff.c
+++ b/libavformat/siff.c
@@ -1,24 +1,25 @@
 /*
  * Beam Software SIFF demuxer
- * Copyright (c) 2007 Konstantin Shishkov.
+ * 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 "libavutil/intreadwrite.h"
 #include "avformat.h"
 
 enum SIFFTags{
@@ -59,11 +60,12 @@ typedef struct SIFFContext{
 
 static int siff_probe(AVProbeData *p)
 {
+    uint32_t tag = AV_RL32(p->buf + 8);
     /* check file header */
-    if (AV_RL32(p->buf) == TAG_SIFF)
-        return AVPROBE_SCORE_MAX;
-    else
+    if (AV_RL32(p->buf) != TAG_SIFF ||
+        (tag != TAG_VBV1 && tag != TAG_SOUN))
         return 0;
+    return AVPROBE_SCORE_MAX;
 }
 
 static int create_audio_stream(AVFormatContext *s, SIFFContext *c)
@@ -72,51 +74,51 @@ static int create_audio_stream(AVFormatContext *s, SIFFContext *c)
     ast = av_new_stream(s, 0);
     if (!ast)
         return -1;
-    ast->codec->codec_type      = CODEC_TYPE_AUDIO;
+    ast->codec->codec_type      = AVMEDIA_TYPE_AUDIO;
     ast->codec->codec_id        = CODEC_ID_PCM_U8;
     ast->codec->channels        = 1;
-    ast->codec->bits_per_sample = c->bits;
+    ast->codec->bits_per_coded_sample = c->bits;
     ast->codec->sample_rate     = c->rate;
     ast->codec->frame_size      = c->block_align;
     av_set_pts_info(ast, 16, 1, c->rate);
     return 0;
 }
 
-static int siff_parse_vbv1(AVFormatContext *s, SIFFContext *c, ByteIOContext *pb)
+static int siff_parse_vbv1(AVFormatContext *s, SIFFContext *c, AVIOContext *pb)
 {
     AVStream *st;
     int width, height;
 
-    if (get_le32(pb) != TAG_VBHD){
+    if (avio_rl32(pb) != TAG_VBHD){
         av_log(s, AV_LOG_ERROR, "Header chunk is missing\n");
         return -1;
     }
-    if(get_be32(pb) != 32){
+    if(avio_rb32(pb) != 32){
         av_log(s, AV_LOG_ERROR, "Header chunk size is incorrect\n");
         return -1;
     }
-    if(get_le16(pb) != 1){
+    if(avio_rl16(pb) != 1){
         av_log(s, AV_LOG_ERROR, "Incorrect header version\n");
         return -1;
     }
-    width = get_le16(pb);
-    height = get_le16(pb);
-    url_fskip(pb, 4);
-    c->frames = get_le16(pb);
+    width = avio_rl16(pb);
+    height = avio_rl16(pb);
+    avio_skip(pb, 4);
+    c->frames = avio_rl16(pb);
     if(!c->frames){
         av_log(s, AV_LOG_ERROR, "File contains no frames ???\n");
         return -1;
     }
-    c->bits = get_le16(pb);
-    c->rate = get_le16(pb);
+    c->bits = avio_rl16(pb);
+    c->rate = avio_rl16(pb);
     c->block_align = c->rate * (c->bits >> 3);
 
-    url_fskip(pb, 16); //zeroes
+    avio_skip(pb, 16); //zeroes
 
     st = av_new_stream(s, 0);
     if (!st)
         return -1;
-    st->codec->codec_type = CODEC_TYPE_VIDEO;
+    st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
     st->codec->codec_id   = CODEC_ID_VB;
     st->codec->codec_tag  = MKTAG('V', 'B', 'V', '1');
     st->codec->width      = width;
@@ -133,33 +135,33 @@ static int siff_parse_vbv1(AVFormatContext *s, SIFFContext *c, ByteIOContext *pb
     return 0;
 }
 
-static int siff_parse_soun(AVFormatContext *s, SIFFContext *c, ByteIOContext *pb)
+static int siff_parse_soun(AVFormatContext *s, SIFFContext *c, AVIOContext *pb)
 {
-    if (get_le32(pb) != TAG_SHDR){
+    if (avio_rl32(pb) != TAG_SHDR){
         av_log(s, AV_LOG_ERROR, "Header chunk is missing\n");
         return -1;
     }
-    if(get_be32(pb) != 8){
+    if(avio_rb32(pb) != 8){
         av_log(s, AV_LOG_ERROR, "Header chunk size is incorrect\n");
         return -1;
     }
-    url_fskip(pb, 4); //unknown value
-    c->rate = get_le16(pb);
-    c->bits = get_le16(pb);
+    avio_skip(pb, 4); //unknown value
+    c->rate = avio_rl16(pb);
+    c->bits = avio_rl16(pb);
     c->block_align = c->rate * (c->bits >> 3);
     return create_audio_stream(s, c);
 }
 
 static int siff_read_header(AVFormatContext *s, AVFormatParameters *ap)
 {
-    ByteIOContext *pb = s->pb;
+    AVIOContext *pb = s->pb;
     SIFFContext *c = s->priv_data;
     uint32_t tag;
 
-    if (get_le32(pb) != TAG_SIFF)
+    if (avio_rl32(pb) != TAG_SIFF)
         return -1;
-    url_fskip(pb, 4); //ignore size
-    tag = get_le32(pb);
+    avio_skip(pb, 4); //ignore size
+    tag = avio_rl32(pb);
 
     if (tag != TAG_VBV1 && tag != TAG_SOUN){
         av_log(s, AV_LOG_ERROR, "Not a VBV file\n");
@@ -170,11 +172,11 @@ static int siff_read_header(AVFormatContext *s, AVFormatParameters *ap)
         return -1;
     if (tag == TAG_SOUN && siff_parse_soun(s, c, pb) < 0)
         return -1;
-    if (get_le32(pb) != MKTAG('B', 'O', 'D', 'Y')){
+    if (avio_rl32(pb) != MKTAG('B', 'O', 'D', 'Y')){
         av_log(s, AV_LOG_ERROR, "'BODY' chunk is missing\n");
         return -1;
     }
-    url_fskip(pb, 4); //ignore size
+    avio_skip(pb, 4); //ignore size
 
     return 0;
 }
@@ -188,12 +190,12 @@ static int siff_read_packet(AVFormatContext *s, AVPacket *pkt)
         if (c->cur_frame >= c->frames)
             return AVERROR(EIO);
         if (c->curstrm == -1){
-            c->pktsize = get_le32(s->pb) - 4;
-            c->flags = get_le16(s->pb);
+            c->pktsize = avio_rl32(s->pb) - 4;
+            c->flags = avio_rl16(s->pb);
             c->gmcsize = (c->flags & VB_HAS_GMC) ? 4 : 0;
             if (c->gmcsize)
-                get_buffer(s->pb, c->gmc, c->gmcsize);
-            c->sndsize = (c->flags & VB_HAS_AUDIO) ? get_le32(s->pb): 0;
+                avio_read(s->pb, c->gmc, c->gmcsize);
+            c->sndsize = (c->flags & VB_HAS_AUDIO) ? avio_rl32(s->pb): 0;
             c->curstrm = !!(c->flags & VB_HAS_AUDIO);
         }
 
@@ -204,7 +206,7 @@ static int siff_read_packet(AVFormatContext *s, AVPacket *pkt)
             AV_WL16(pkt->data, c->flags);
             if (c->gmcsize)
                 memcpy(pkt->data + 2, c->gmc, c->gmcsize);
-            get_buffer(s->pb, pkt->data + 2 + c->gmcsize, size - c->gmcsize - 2);
+            avio_read(s->pb, pkt->data + 2 + c->gmcsize, size - c->gmcsize - 2);
             pkt->stream_index = 0;
             c->curstrm = -1;
         }else{
@@ -214,7 +216,7 @@ static int siff_read_packet(AVFormatContext *s, AVPacket *pkt)
             c->curstrm = 0;
         }
         if(!c->cur_frame || c->curstrm)
-            pkt->flags |= PKT_FLAG_KEY;
+            pkt->flags |= AV_PKT_FLAG_KEY;
         if (c->curstrm == -1)
             c->cur_frame++;
     }else{
@@ -225,12 +227,12 @@ static int siff_read_packet(AVFormatContext *s, AVPacket *pkt)
     return pkt->size;
 }
 
-AVInputFormat siff_demuxer = {
-    "siff",
-    "Beam Software SIFF",
-    sizeof(SIFFContext),
-    siff_probe,
-    siff_read_header,
-    siff_read_packet,
+AVInputFormat ff_siff_demuxer = {
+    .name           = "siff",
+    .long_name      = NULL_IF_CONFIG_SMALL("Beam Software SIFF"),
+    .priv_data_size = sizeof(SIFFContext),
+    .read_probe     = siff_probe,
+    .read_header    = siff_read_header,
+    .read_packet    = siff_read_packet,
     .extensions = "vb,son"
 };