* Brute Force & Ignorance (BFI) demuxer
* Copyright (c) 2008 Sisir Koppaka
*
- * 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
* @brief Brute Force & Ignorance (.bfi) file demuxer
* @author Sisir Koppaka ( sisir.koppaka at gmail dot com )
- * @sa http://wiki.multimedia.cx/index.php?title=BFI
+ * @see http://wiki.multimedia.cx/index.php?title=BFI
*/
#include "libavutil/intreadwrite.h"
#include "avformat.h"
+#include "internal.h"
typedef struct BFIContext {
int nframes;
return 0;
}
-static int bfi_read_header(AVFormatContext * s, AVFormatParameters * ap)
+static int bfi_read_header(AVFormatContext * s)
{
BFIContext *bfi = s->priv_data;
AVIOContext *pb = s->pb;
int fps, chunk_header;
/* Initialize the video codec... */
- vstream = av_new_stream(s, 0);
+ vstream = avformat_new_stream(s, NULL);
if (!vstream)
return AVERROR(ENOMEM);
/* Initialize the audio codec... */
- astream = av_new_stream(s, 0);
+ astream = avformat_new_stream(s, NULL);
if (!astream)
return AVERROR(ENOMEM);
/* Set the total number of frames. */
- url_fskip(pb, 8);
- chunk_header = get_le32(pb);
- bfi->nframes = get_le32(pb);
- get_le32(pb);
- get_le32(pb);
- get_le32(pb);
- fps = get_le32(pb);
- url_fskip(pb, 12);
- vstream->codec->width = get_le32(pb);
- vstream->codec->height = get_le32(pb);
+ avio_skip(pb, 8);
+ chunk_header = avio_rl32(pb);
+ bfi->nframes = avio_rl32(pb);
+ avio_rl32(pb);
+ avio_rl32(pb);
+ avio_rl32(pb);
+ fps = avio_rl32(pb);
+ avio_skip(pb, 12);
+ vstream->codec->width = avio_rl32(pb);
+ vstream->codec->height = avio_rl32(pb);
/*Load the palette to extradata */
- url_fskip(pb, 8);
+ avio_skip(pb, 8);
vstream->codec->extradata = av_malloc(768);
vstream->codec->extradata_size = 768;
- get_buffer(pb, vstream->codec->extradata,
+ avio_read(pb, vstream->codec->extradata,
vstream->codec->extradata_size);
- astream->codec->sample_rate = get_le32(pb);
+ astream->codec->sample_rate = avio_rl32(pb);
/* Set up the video codec... */
- av_set_pts_info(vstream, 32, 1, fps);
+ avpriv_set_pts_info(vstream, 32, 1, fps);
vstream->codec->codec_type = AVMEDIA_TYPE_VIDEO;
vstream->codec->codec_id = CODEC_ID_BFI;
vstream->codec->pix_fmt = PIX_FMT_PAL8;
astream->codec->bits_per_coded_sample = 8;
astream->codec->bit_rate =
astream->codec->sample_rate * astream->codec->bits_per_coded_sample;
- url_fseek(pb, chunk_header - 3, SEEK_SET);
- av_set_pts_info(astream, 64, 1, astream->codec->sample_rate);
+ avio_seek(pb, chunk_header - 3, SEEK_SET);
+ avpriv_set_pts_info(astream, 64, 1, astream->codec->sample_rate);
return 0;
}
BFIContext *bfi = s->priv_data;
AVIOContext *pb = s->pb;
int ret, audio_offset, video_offset, chunk_size, audio_size = 0;
- if (bfi->nframes == 0 || url_feof(pb)) {
+ if (bfi->nframes == 0 || pb->eof_reached) {
return AVERROR(EIO);
}
if (!bfi->avflag) {
uint32_t state = 0;
while(state != MKTAG('S','A','V','I')){
- if (url_feof(pb))
+ if (pb->eof_reached)
return AVERROR(EIO);
- state = 256*state + get_byte(pb);
+ state = 256*state + avio_r8(pb);
}
/* Now that the chunk's location is confirmed, we proceed... */
- chunk_size = get_le32(pb);
- get_le32(pb);
- audio_offset = get_le32(pb);
- get_le32(pb);
- video_offset = get_le32(pb);
+ chunk_size = avio_rl32(pb);
+ avio_rl32(pb);
+ audio_offset = avio_rl32(pb);
+ avio_rl32(pb);
+ video_offset = avio_rl32(pb);
audio_size = video_offset - audio_offset;
bfi->video_size = chunk_size - video_offset;
}
AVInputFormat ff_bfi_demuxer = {
- "bfi",
- NULL_IF_CONFIG_SMALL("Brute Force & Ignorance"),
- sizeof(BFIContext),
- bfi_probe,
- bfi_read_header,
- bfi_read_packet,
+ .name = "bfi",
+ .long_name = NULL_IF_CONFIG_SMALL("Brute Force & Ignorance"),
+ .priv_data_size = sizeof(BFIContext),
+ .read_probe = bfi_probe,
+ .read_header = bfi_read_header,
+ .read_packet = bfi_read_packet,
};
projects / ffmpeg / blobdiff