* Copyright (c) 2007 Justin Ruggles
* Copyright (c) 2009 Peter Ross
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "internal.h"
#include "riff.h"
#include "isom.h"
+#include "mov_chan.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/intfloat.h"
#include "libavutil/dict.h"
/* parse format description */
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->sample_rate = av_int2double(avio_rb64(pb));
- st->codec->codec_tag = avio_rb32(pb);
+ st->codec->codec_tag = avio_rl32(pb);
flags = avio_rb32(pb);
caf->bytes_per_packet = avio_rb32(pb);
st->codec->block_align = caf->bytes_per_packet;
}
/* determine codec */
- if (st->codec->codec_tag == MKBETAG('l','p','c','m'))
+ if (st->codec->codec_tag == MKTAG('l','p','c','m'))
st->codec->codec_id = ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample, (flags ^ 0x2) | 0x4);
else
st->codec->codec_id = ff_codec_get_id(ff_codec_caf_tags, st->codec->codec_tag);
if (size < 0 || size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE)
return -1;
- if (st->codec->codec_id == CODEC_ID_AAC) {
+ if (st->codec->codec_id == AV_CODEC_ID_AAC) {
/* The magic cookie format for AAC is an mp4 esds atom.
The lavc AAC decoder requires the data from the codec specific
description as extradata input. */
ff_mov_read_esds(s, pb, atom);
skip = size - (avio_tell(pb) - strt);
if (skip < 0 || !st->codec->extradata ||
- st->codec->codec_id != CODEC_ID_AAC) {
+ st->codec->codec_id != AV_CODEC_ID_AAC) {
av_log(s, AV_LOG_ERROR, "invalid AAC magic cookie\n");
return AVERROR_INVALIDDATA;
}
avio_skip(pb, skip);
- } else if (st->codec->codec_id == CODEC_ID_ALAC) {
+ } else if (st->codec->codec_id == AV_CODEC_ID_ALAC) {
#define ALAC_PREAMBLE 12
#define ALAC_HEADER 36
- if (size < ALAC_PREAMBLE + ALAC_HEADER) {
+#define ALAC_NEW_KUKI 24
+ uint8_t preamble[12];
+ if (size < ALAC_NEW_KUKI) {
av_log(s, AV_LOG_ERROR, "invalid ALAC magic cookie\n");
avio_skip(pb, size);
return AVERROR_INVALIDDATA;
}
- avio_skip(pb, ALAC_PREAMBLE);
+ avio_read(pb, preamble, 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);
+
+ /* For the old style cookie, we skip 12 bytes, then read 36 bytes.
+ * The new style cookie only contains the last 24 bytes of what was
+ * 36 bytes in the old style cookie, so we fabricate the first 12 bytes
+ * in that case to maintain compatibility. */
+ if (!memcmp(&preamble[4], "frmaalac", 8)) {
+ if (size < ALAC_PREAMBLE + ALAC_HEADER) {
+ av_log(s, AV_LOG_ERROR, "invalid ALAC magic cookie\n");
+ av_freep(&st->codec->extradata);
+ return AVERROR_INVALIDDATA;
+ }
+ avio_read(pb, st->codec->extradata, ALAC_HEADER);
+ avio_skip(pb, size - ALAC_PREAMBLE - ALAC_HEADER);
+ } else {
+ AV_WB32(st->codec->extradata, 36);
+ memcpy(&st->codec->extradata[4], "alac", 4);
+ AV_WB32(&st->codec->extradata[8], 0);
+ memcpy(&st->codec->extradata[12], preamble, 12);
+ avio_read(pb, &st->codec->extradata[24], ALAC_NEW_KUKI - 12);
+ avio_skip(pb, size - ALAC_NEW_KUKI);
+ }
st->codec->extradata_size = ALAC_HEADER;
- avio_skip(pb, size - ALAC_PREAMBLE - ALAC_HEADER);
} else {
st->codec->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata)
AVIOContext *pb = s->pb;
AVStream *st = s->streams[0];
CaffContext *caf = s->priv_data;
- int64_t pos = 0, ccount;
- int num_packets, i;
+ int64_t pos = 0, ccount, num_packets;
+ int i;
ccount = avio_tell(pb);
st->duration += caf->frames_per_packet ? caf->frames_per_packet : ff_mp4_read_descr_len(pb);
}
- if (avio_tell(pb) - ccount != size) {
+ if (avio_tell(pb) - ccount > size) {
av_log(s, AV_LOG_ERROR, "error reading packet table\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
+ avio_skip(pb, ccount + size - avio_tell(pb));
caf->num_bytes = pos;
return 0;
for (i = 0; i < nb_entries; i++) {
char key[32];
char value[1024];
- avio_get_str(pb, INT_MAX, key, sizeof(key));
+ avio_get_str(pb, INT_MAX, key, sizeof(key));
avio_get_str(pb, INT_MAX, value, sizeof(value));
av_dict_set(&s->metadata, key, value, 0);
}
/* parse each chunk */
found_data = 0;
- while (!pb->eof_reached) {
+ while (!url_feof(pb)) {
/* stop at data chunk if seeking is not supported or
data chunk size is unknown */
tag = avio_rb32(pb);
size = avio_rb64(pb);
- if (pb->eof_reached)
+ if (url_feof(pb))
break;
switch (tag) {
found_data = 1;
break;
+ case MKBETAG('c','h','a','n'):
+ if ((ret = ff_mov_read_chan(s, st, size)) < 0)
+ return ret;
+ break;
+
/* magic cookie chunk */
case MKBETAG('k','u','k','i'):
if (read_kuki_chunk(s, size))
default:
#define _(x) ((x) >= ' ' ? (x) : ' ')
- av_log(s, AV_LOG_WARNING, "skipping CAF chunk: %08X (%c%c%c%c)\n",
- tag, _(tag>>24), _((tag>>16)&0xFF), _((tag>>8)&0xFF), _(tag&0xFF));
+ av_log(s, AV_LOG_WARNING, "skipping CAF chunk: %08X (%c%c%c%c), size %"PRId64"\n",
+ tag, _(tag>>24), _((tag>>16)&0xFF), _((tag>>8)&0xFF), _(tag&0xFF), size);
#undef _
case MKBETAG('f','r','e','e'):
if (size < 0)
int res, pkt_size = 0, pkt_frames = 0;
int64_t left = CAF_MAX_PKT_SIZE;
- if (pb->eof_reached)
+ if (url_feof(pb))
return AVERROR(EIO);
/* don't read past end of data chunk */
AVInputFormat ff_caf_demuxer = {
.name = "caf",
- .long_name = NULL_IF_CONFIG_SMALL("Apple Core Audio Format"),
+ .long_name = NULL_IF_CONFIG_SMALL("Apple CAF (Core Audio Format)"),
.priv_data_size = sizeof(CaffContext),
.read_probe = probe,
.read_header = read_header,
projects / ffmpeg / blobdiff