X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fvc1test.c;h=3354ad4b8fe9e384d4464c2519c2f438a3cc6e97;hb=e30b3e59a4f3004337cb1623b2aac988ce52b93f;hp=c8340179cfdf43a8a22a3a7031d83e6eed2409d6;hpb=eda178d273cd2558fd727e98c503dfa726621d6c;p=ffmpeg

diff --git a/libavformat/vc1test.c b/libavformat/vc1test.c
index c8340179cfd..3354ad4b8fe 100644
--- a/libavformat/vc1test.c
+++ b/libavformat/vc1test.c
@@ -2,74 +2,82 @@
  * VC1 Test Bitstreams Format Demuxer
  * Copyright (c) 2006, 2008 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
  */
 
 /**
- * @file vc1test.c
+ * @file
  * VC1 test bitstream file demuxer
  * by Konstantin Shishkov
  * Format specified in SMPTE standard 421 Annex L
  */
 
+#include "libavutil/intreadwrite.h"
 #include "avformat.h"
+#include "internal.h"
 
 #define VC1_EXTRADATA_SIZE 4
 
 static int vc1t_probe(AVProbeData *p)
 {
-    if (p->buf[3] != 0xC5 && AV_RL32(&p->buf[4]) != 4)
+    if (p->buf_size < 24)
+        return 0;
+    if (p->buf[3] != 0xC5 || AV_RL32(&p->buf[4]) != 4 || AV_RL32(&p->buf[20]) != 0xC)
         return 0;
 
-    return AVPROBE_SCORE_MAX;
+    return AVPROBE_SCORE_MAX/2;
 }
 
-static int vc1t_read_header(AVFormatContext *s,
-                           AVFormatParameters *ap)
+static int vc1t_read_header(AVFormatContext *s)
 {
-    ByteIOContext *pb = s->pb;
+    AVIOContext *pb = s->pb;
     AVStream *st;
-    int fps, frames;
+    int frames;
+    uint32_t fps;
 
-    frames = get_le24(pb);
-    if(get_byte(pb) != 0xC5 || get_le32(pb) != 4)
+    frames = avio_rl24(pb);
+    if(avio_r8(pb) != 0xC5 || avio_rl32(pb) != 4)
         return -1;
 
     /* init video codec */
-    st = av_new_stream(s, 0);
+    st = avformat_new_stream(s, NULL);
     if (!st)
         return -1;
 
-    st->codec->codec_type = CODEC_TYPE_VIDEO;
+    st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
     st->codec->codec_id = CODEC_ID_WMV3;
 
     st->codec->extradata = av_malloc(VC1_EXTRADATA_SIZE);
     st->codec->extradata_size = VC1_EXTRADATA_SIZE;
-    get_buffer(pb, st->codec->extradata, VC1_EXTRADATA_SIZE);
-    st->codec->height = get_le32(pb);
-    st->codec->width = get_le32(pb);
-    if(get_le32(pb) != 0xC)
+    avio_read(pb, st->codec->extradata, VC1_EXTRADATA_SIZE);
+    st->codec->height = avio_rl32(pb);
+    st->codec->width = avio_rl32(pb);
+    if(avio_rl32(pb) != 0xC)
         return -1;
-    url_fskip(pb, 8);
-    fps = get_le32(pb);
-    if(fps == -1)
-        av_set_pts_info(st, 32, 1, 1000);
+    avio_skip(pb, 8);
+    fps = avio_rl32(pb);
+    if(fps == 0xFFFFFFFF)
+        avpriv_set_pts_info(st, 32, 1, 1000);
     else{
-        av_set_pts_info(st, 24, 1, fps);
+        if (!fps) {
+            av_log(s, AV_LOG_ERROR, "Zero FPS specified, defaulting to 1 FPS\n");
+            fps = 1;
+        }
+        avpriv_set_pts_info(st, 24, 1, fps);
         st->duration = frames;
     }
 
@@ -79,34 +87,33 @@ static int vc1t_read_header(AVFormatContext *s,
 static int vc1t_read_packet(AVFormatContext *s,
                            AVPacket *pkt)
 {
-    ByteIOContext *pb = s->pb;
+    AVIOContext *pb = s->pb;
     int frame_size;
     int keyframe = 0;
     uint32_t pts;
 
-    if(url_feof(pb))
+    if(pb->eof_reached)
         return AVERROR(EIO);
 
-    frame_size = get_le24(pb);
-    if(get_byte(pb) & 0x80)
+    frame_size = avio_rl24(pb);
+    if(avio_r8(pb) & 0x80)
         keyframe = 1;
-    pts = get_le32(pb);
+    pts = avio_rl32(pb);
     if(av_get_packet(pb, pkt, frame_size) < 0)
         return AVERROR(EIO);
     if(s->streams[0]->time_base.den == 1000)
         pkt->pts = pts;
-    pkt->flags |= keyframe ? PKT_FLAG_KEY : 0;
+    pkt->flags |= keyframe ? AV_PKT_FLAG_KEY : 0;
     pkt->pos -= 8;
 
     return pkt->size;
 }
 
-AVInputFormat vc1t_demuxer = {
-    "vc1test",
-    "VC1 test bitstream format",
-    0,
-    vc1t_probe,
-    vc1t_read_header,
-    vc1t_read_packet,
+AVInputFormat ff_vc1t_demuxer = {
+    .name           = "vc1test",
+    .long_name      = NULL_IF_CONFIG_SMALL("VC-1 test bitstream format"),
+    .read_probe     = vc1t_probe,
+    .read_header    = vc1t_read_header,
+    .read_packet    = vc1t_read_packet,
     .flags = AVFMT_GENERIC_INDEX,
 };