* Copyright (c) 2007 Justin Ruggles
* Copyright (c) 2009 Peter Ross
*
- * 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 "avformat.h"
+#include "internal.h"
#include "riff.h"
#include "isom.h"
#include "libavutil/intreadwrite.h"
+#include "libavutil/intfloat.h"
+#include "libavutil/dict.h"
#include "caf.h"
typedef struct {
int flags;
/* new audio stream */
- st = av_new_stream(s, 0);
+ st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
/* parse format description */
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
- st->codec->sample_rate = av_int2dbl(avio_rb64(pb));
+ st->codec->sample_rate = av_int2double(avio_rb64(pb));
st->codec->codec_tag = avio_rb32(pb);
flags = avio_rb32(pb);
caf->bytes_per_packet = avio_rb32(pb);
av_log(s, AV_LOG_ERROR, "invalid AAC magic cookie\n");
return AVERROR_INVALIDDATA;
}
- avio_seek(pb, skip, SEEK_CUR);
+ avio_skip(pb, skip);
} else if (st->codec->codec_id == CODEC_ID_ALAC) {
#define ALAC_PREAMBLE 12
#define ALAC_HEADER 36
if (size < ALAC_PREAMBLE + ALAC_HEADER) {
av_log(s, AV_LOG_ERROR, "invalid ALAC magic cookie\n");
- avio_seek(pb, size, SEEK_CUR);
+ avio_skip(pb, size);
return AVERROR_INVALIDDATA;
}
- avio_seek(pb, ALAC_PREAMBLE, SEEK_CUR);
+ avio_skip(pb, ALAC_PREAMBLE);
st->codec->extradata = av_mallocz(ALAC_HEADER + FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
return AVERROR(ENOMEM);
avio_read(pb, st->codec->extradata, ALAC_HEADER);
st->codec->extradata_size = ALAC_HEADER;
- avio_seek(pb, size - ALAC_PREAMBLE - ALAC_HEADER, SEEK_CUR);
+ avio_skip(pb, size - ALAC_PREAMBLE - ALAC_HEADER);
} else {
st->codec->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
char value[1024];
avio_get_str(pb, INT_MAX, key, sizeof(key));
avio_get_str(pb, INT_MAX, value, sizeof(value));
- av_metadata_set2(&s->metadata, key, value, 0);
+ av_dict_set(&s->metadata, key, value, 0);
}
}
-static int read_header(AVFormatContext *s,
- AVFormatParameters *ap)
+static int read_header(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
CaffContext *caf = s->priv_data;
int found_data, ret;
int64_t size;
- avio_seek(pb, 8, SEEK_CUR); /* magic, version, file flags */
+ avio_skip(pb, 8); /* magic, version, file flags */
/* audio description chunk */
if (avio_rb32(pb) != MKBETAG('d','e','s','c')) {
/* parse each chunk */
found_data = 0;
- while (!url_feof(pb)) {
+ while (!pb->eof_reached) {
/* stop at data chunk if seeking is not supported or
data chunk size is unknown */
- if (found_data && (caf->data_size < 0 || url_is_streamed(pb)))
+ if (found_data && (caf->data_size < 0 || !pb->seekable))
break;
tag = avio_rb32(pb);
size = avio_rb64(pb);
- if (url_feof(pb))
+ if (pb->eof_reached)
break;
switch (tag) {
case MKBETAG('d','a','t','a'):
- avio_seek(pb, 4, SEEK_CUR); /* edit count */
+ avio_skip(pb, 4); /* edit count */
caf->data_start = avio_tell(pb);
caf->data_size = size < 0 ? -1 : size - 4;
- if (caf->data_size > 0 && !url_is_streamed(pb))
- avio_seek(pb, caf->data_size, SEEK_CUR);
+ if (caf->data_size > 0 && pb->seekable)
+ avio_skip(pb, caf->data_size);
found_data = 1;
break;
case MKBETAG('f','r','e','e'):
if (size < 0)
return AVERROR_INVALIDDATA;
- avio_seek(pb, size, SEEK_CUR);
+ avio_skip(pb, size);
break;
}
}
"block size or frame size are variable.\n");
return AVERROR_INVALIDDATA;
}
- s->file_size = url_fsize(pb);
- s->file_size = FFMAX(0, s->file_size);
- av_set_pts_info(st, 64, 1, st->codec->sample_rate);
+ avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
st->start_time = 0;
/* position the stream at the start of data */
int res, pkt_size = 0, pkt_frames = 0;
int64_t left = CAF_MAX_PKT_SIZE;
- if (url_feof(pb))
+ if (pb->eof_reached)
return AVERROR(EIO);
/* don't read past end of data chunk */
{
AVStream *st = s->streams[0];
CaffContext *caf = s->priv_data;
- int64_t pos;
+ int64_t pos, packet_cnt, frame_cnt;
timestamp = FFMAX(timestamp, 0);
pos = caf->bytes_per_packet * timestamp / caf->frames_per_packet;
if (caf->data_size > 0)
pos = FFMIN(pos, caf->data_size);
- caf->packet_cnt = pos / caf->bytes_per_packet;
- caf->frame_cnt = caf->frames_per_packet * caf->packet_cnt;
+ packet_cnt = pos / caf->bytes_per_packet;
+ frame_cnt = caf->frames_per_packet * packet_cnt;
} else if (st->nb_index_entries) {
- caf->packet_cnt = av_index_search_timestamp(st, timestamp, flags);
- caf->frame_cnt = st->index_entries[caf->packet_cnt].timestamp;
- pos = st->index_entries[caf->packet_cnt].pos;
+ packet_cnt = av_index_search_timestamp(st, timestamp, flags);
+ frame_cnt = st->index_entries[packet_cnt].timestamp;
+ pos = st->index_entries[packet_cnt].pos;
} else {
return -1;
}
- avio_seek(s->pb, pos + caf->data_start, SEEK_SET);
+ if (avio_seek(s->pb, pos + caf->data_start, SEEK_SET) < 0)
+ return -1;
+
+ caf->packet_cnt = packet_cnt;
+ caf->frame_cnt = frame_cnt;
+
return 0;
}
AVInputFormat ff_caf_demuxer = {
- "caf",
- NULL_IF_CONFIG_SMALL("Apple Core Audio Format"),
- sizeof(CaffContext),
- probe,
- read_header,
- read_packet,
- NULL,
- read_seek,
- .codec_tag = (const AVCodecTag*[]){ff_codec_caf_tags, 0},
+ .name = "caf",
+ .long_name = NULL_IF_CONFIG_SMALL("Apple Core Audio Format"),
+ .priv_data_size = sizeof(CaffContext),
+ .read_probe = probe,
+ .read_header = read_header,
+ .read_packet = read_packet,
+ .read_seek = read_seek,
+ .codec_tag = (const AVCodecTag*[]){ ff_codec_caf_tags, 0 },
};