* Copyright (c) 2010 Peter Ross <pross@xvid.org>
* Copyright (c) 2010 Sebastian Vater <cdgs.basty@googlemail.com>
*
- * 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 "libavutil/dict.h"
#include "avformat.h"
+#include "internal.h"
#define ID_8SVX MKTAG('8','S','V','X')
#define ID_VHDR MKTAG('V','H','D','R')
#define RIGHT 4
#define STEREO 6
-#define PACKET_SIZE 1024
-
typedef enum {
COMP_NONE,
COMP_FIB,
uint64_t body_pos;
uint32_t body_size;
uint32_t sent_bytes;
- uint32_t audio_frame_count;
} IffDemuxContext;
-static void interleave_stereo(const uint8_t *src, uint8_t *dest, int size)
-{
- uint8_t *end = dest + size;
- size = size>>1;
-
- while(dest < end) {
- *dest++ = *src;
- *dest++ = *(src+size);
- src++;
- }
-}
-
/* Metadata string read */
static int get_metadata(AVFormatContext *s,
const char *const tag,
return AVERROR(EIO);
}
buf[data_size] = 0;
- av_metadata_set2(&s->metadata, tag, buf, AV_METADATA_DONT_STRDUP_VAL);
+ av_dict_set(&s->metadata, tag, buf, AV_DICT_DONT_STRDUP_VAL);
return 0;
}
return 0;
}
-static int iff_read_header(AVFormatContext *s,
- AVFormatParameters *ap)
+static int iff_read_header(AVFormatContext *s)
{
IffDemuxContext *iff = s->priv_data;
AVIOContext *pb = s->pb;
uint32_t chunk_id, data_size;
int compression = -1;
- st = av_new_stream(s, 0);
+ st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
st->codec->channels = 1;
- avio_seek(pb, 8, SEEK_CUR);
+ avio_skip(pb, 8);
// codec_tag used by ByteRun1 decoder to distinguish progressive (PBM) and interlaced (ILBM) content
st->codec->codec_tag = avio_rl32(pb);
if (data_size < 14)
return AVERROR_INVALIDDATA;
- avio_seek(pb, 12, SEEK_CUR);
+ avio_skip(pb, 12);
st->codec->sample_rate = avio_rb16(pb);
if (data_size >= 16) {
- avio_seek(pb, 1, SEEK_CUR);
+ avio_skip(pb, 1);
compression = avio_r8(pb);
}
break;
return AVERROR_INVALIDDATA;
st->codec->width = avio_rb16(pb);
st->codec->height = avio_rb16(pb);
- avio_seek(pb, 4, SEEK_CUR); // x, y offset
+ avio_skip(pb, 4); // x, y offset
st->codec->bits_per_coded_sample = avio_r8(pb);
if (data_size >= 11) {
- avio_seek(pb, 1, SEEK_CUR); // masking
+ avio_skip(pb, 1); // masking
compression = avio_r8(pb);
}
if (data_size >= 16) {
- avio_seek(pb, 3, SEEK_CUR); // paddding, transparent
+ avio_skip(pb, 3); // paddding, transparent
st->sample_aspect_ratio.num = avio_r8(pb);
st->sample_aspect_ratio.den = avio_r8(pb);
}
return res;
}
}
- avio_seek(pb, data_size - (avio_tell(pb) - orig_pos) + (data_size & 1), SEEK_CUR);
+ avio_skip(pb, data_size - (avio_tell(pb) - orig_pos) + (data_size & 1));
}
avio_seek(pb, iff->body_pos, SEEK_SET);
switch(st->codec->codec_type) {
case AVMEDIA_TYPE_AUDIO:
- av_set_pts_info(st, 32, 1, st->codec->sample_rate);
+ avpriv_set_pts_info(st, 32, 1, st->codec->sample_rate);
switch(compression) {
case COMP_NONE:
- st->codec->codec_id = CODEC_ID_PCM_S8;
+ st->codec->codec_id = CODEC_ID_PCM_S8_PLANAR;
break;
case COMP_FIB:
st->codec->codec_id = CODEC_ID_8SVX_FIB;
{
IffDemuxContext *iff = s->priv_data;
AVIOContext *pb = s->pb;
- AVStream *st = s->streams[0];
int ret;
if(iff->sent_bytes >= iff->body_size)
- return AVERROR(EIO);
-
- if(st->codec->channels == 2) {
- uint8_t sample_buffer[PACKET_SIZE];
+ return AVERROR_EOF;
- ret = avio_read(pb, sample_buffer, PACKET_SIZE);
- if(av_new_packet(pkt, PACKET_SIZE) < 0) {
- av_log(s, AV_LOG_ERROR, "cannot allocate packet\n");
- return AVERROR(ENOMEM);
- }
- interleave_stereo(sample_buffer, pkt->data, PACKET_SIZE);
- } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
- ret = av_get_packet(pb, pkt, iff->body_size);
- } else {
- ret = av_get_packet(pb, pkt, PACKET_SIZE);
- }
+ ret = av_get_packet(pb, pkt, iff->body_size);
+ if (ret < 0)
+ return ret;
if(iff->sent_bytes == 0)
pkt->flags |= AV_PKT_FLAG_KEY;
+ iff->sent_bytes = iff->body_size;
- if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
- iff->sent_bytes += PACKET_SIZE;
- } else {
- iff->sent_bytes = iff->body_size;
- }
pkt->stream_index = 0;
- if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
- pkt->pts = iff->audio_frame_count;
- iff->audio_frame_count += ret / st->codec->channels;
- }
return ret;
}
AVInputFormat ff_iff_demuxer = {
- "IFF",
- NULL_IF_CONFIG_SMALL("IFF format"),
- sizeof(IffDemuxContext),
- iff_probe,
- iff_read_header,
- iff_read_packet,
+ .name = "IFF",
+ .long_name = NULL_IF_CONFIG_SMALL("IFF format"),
+ .priv_data_size = sizeof(IffDemuxContext),
+ .read_probe = iff_probe,
+ .read_header = iff_read_header,
+ .read_packet = iff_read_packet,
};