* RF64 demuxer
* Copyright (c) 2009 Daniel Verkamp
*
+ * BW64 demuxer
+ *
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
int smv_eof;
int audio_eof;
int ignore_length;
+ int max_size;
int spdif;
int smv_cur_pt;
int smv_given_first;
* its own, the returned score is decreased to avoid a probe
* conflict between ACT and WAV. */
return AVPROBE_SCORE_MAX - 1;
- else if (!memcmp(p->buf, "RF64", 4) &&
+ else if ((!memcmp(p->buf, "RF64", 4) ||
+ !memcmp(p->buf, "BW64", 4)) &&
!memcmp(p->buf + 12, "ds64", 4))
return AVPROBE_SCORE_MAX;
}
static void handle_stream_probing(AVStream *st)
{
if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S16LE) {
- st->request_probe = AVPROBE_SCORE_EXTENSION;
+ st->internal->request_probe = AVPROBE_SCORE_EXTENSION;
st->probe_packets = FFMIN(st->probe_packets, 32);
}
}
avpriv_set_pts_info(*st, 64, 1, (*st)->codecpar->sample_rate);
avio_seek(pb, -size, SEEK_CUR);
- av_freep(&(*st)->codecpar->extradata);
if ((ret = ff_get_extradata(s, (*st)->codecpar, pb, size)) < 0)
return ret;
{
int64_t size, av_uninit(data_size);
int64_t sample_count = 0;
- int rf64 = 0;
+ int rf64 = 0, bw64 = 0;
uint32_t tag;
AVIOContext *pb = s->pb;
AVStream *st = NULL;
case MKTAG('R', 'F', '6', '4'):
rf64 = 1;
break;
+ case MKTAG('B', 'W', '6', '4'):
+ bw64 = 1;
+ break;
default:
av_log(s, AV_LOG_ERROR, "invalid start code %s in RIFF header\n",
av_fourcc2str(tag));
return AVERROR_INVALIDDATA;
}
- if (rf64) {
+ if (rf64 || bw64) {
if (avio_rl32(pb) != MKTAG('d', 's', '6', '4'))
return AVERROR_INVALIDDATA;
size = avio_rl32(pb);
return AVERROR_INVALIDDATA;
}
- if (rf64) {
+ if (rf64 || bw64) {
next_tag_ofs = wav->data_end = avio_tell(pb) + data_size;
} else if (size != 0xFFFFFFFF) {
data_size = size;
/* don't look for footer metadata if we can't seek or if we don't
* know where the data tag ends
*/
- if (!(pb->seekable & AVIO_SEEKABLE_NORMAL) || (!rf64 && !size))
+ if (!(pb->seekable & AVIO_SEEKABLE_NORMAL) || (!(rf64 && !bw64) && !size))
goto break_loop;
break;
case MKTAG('f', 'a', 'c', 't'):
wav->smv_cur_pt = 0;
goto break_loop;
case MKTAG('L', 'I', 'S', 'T'):
+ case MKTAG('l', 'i', 's', 't'):
if (size < 4) {
av_log(s, AV_LOG_ERROR, "too short LIST tag\n");
return AVERROR_INVALIDDATA;
switch (avio_rl32(pb)) {
case MKTAG('I', 'N', 'F', 'O'):
ff_read_riff_info(s, size - 4);
+ break;
+ case MKTAG('a', 'd', 't', 'l'):
+ if (s->nb_chapters > 0) {
+ while (avio_tell(pb) < next_tag_ofs &&
+ !avio_feof(pb)) {
+ char cue_label[512];
+ unsigned id, sub_size;
+
+ if (avio_rl32(pb) != MKTAG('l', 'a', 'b', 'l'))
+ break;
+
+ sub_size = avio_rl32(pb);
+ if (sub_size < 5)
+ break;
+ id = avio_rl32(pb);
+ avio_get_str(pb, sub_size - 4, cue_label, sizeof(cue_label));
+ avio_skip(pb, avio_tell(pb) & 1);
+
+ for (int i = 0; i < s->nb_chapters; i++) {
+ if (s->chapters[i]->id == id) {
+ av_dict_set(&s->chapters[i]->metadata, "title", cue_label, 0);
+ break;
+ }
+ }
+ }
+ }
+ break;
}
break;
case MKTAG('I', 'D', '3', ' '):
ID3v2ExtraMeta *id3v2_extra_meta = NULL;
ff_id3v2_read_dict(pb, &s->internal->id3v2_meta, ID3v2_DEFAULT_MAGIC, &id3v2_extra_meta);
if (id3v2_extra_meta) {
- ff_id3v2_parse_apic(s, &id3v2_extra_meta);
- ff_id3v2_parse_chapters(s, &id3v2_extra_meta);
- ff_id3v2_parse_priv(s, &id3v2_extra_meta);
+ ff_id3v2_parse_apic(s, id3v2_extra_meta);
+ ff_id3v2_parse_chapters(s, id3v2_extra_meta);
+ ff_id3v2_parse_priv(s, id3v2_extra_meta);
}
ff_id3v2_free_extra_meta(&id3v2_extra_meta);
}
break;
+ case MKTAG('c', 'u', 'e', ' '):
+ if (size >= 4 && got_fmt && st->codecpar->sample_rate > 0) {
+ AVRational tb = {1, st->codecpar->sample_rate};
+ unsigned nb_cues = avio_rl32(pb);
+
+ if (size >= nb_cues * 24LL + 4LL) {
+ for (int i = 0; i < nb_cues; i++) {
+ unsigned offset, id = avio_rl32(pb);
+
+ avio_skip(pb, 16);
+ offset = avio_rl32(pb);
+
+ if (!avpriv_new_chapter(s, id, tb, offset, AV_NOPTS_VALUE, NULL))
+ return AVERROR(ENOMEM);
+ }
+ }
+ }
+ break;
}
/* seek to next tag unless we know that we'll run into EOF */
return AVERROR_EOF;
}
-#define MAX_SIZE 4096
-
static int wav_read_packet(AVFormatContext *s, AVPacket *pkt)
{
int ret, size;
wav->data_end = avio_tell(s->pb) + left;
}
- size = MAX_SIZE;
+ size = wav->max_size;
if (st->codecpar->block_align > 1) {
if (size < st->codecpar->block_align)
size = st->codecpar->block_align;
#define DEC AV_OPT_FLAG_DECODING_PARAM
static const AVOption demux_options[] = {
{ "ignore_length", "Ignore length", OFFSET(ignore_length), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC },
+ { "max_size", "max size of single packet", OFFSET(max_size), AV_OPT_TYPE_INT, { .i64 = 4096 }, 1024, 1 << 22, DEC },
{ NULL },
};
return 0;
}
+#define OFFSET(x) offsetof(WAVDemuxContext, x)
+#define DEC AV_OPT_FLAG_DECODING_PARAM
+static const AVOption w64_demux_options[] = {
+ { "max_size", "max size of single packet", OFFSET(max_size), AV_OPT_TYPE_INT, { .i64 = 4096 }, 1024, 1 << 22, DEC },
+ { NULL }
+};
+
+static const AVClass w64_demuxer_class = {
+ .class_name = "W64 demuxer",
+ .item_name = av_default_item_name,
+ .option = w64_demux_options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
AVInputFormat ff_w64_demuxer = {
.name = "w64",
.long_name = NULL_IF_CONFIG_SMALL("Sony Wave64"),
.read_seek = wav_read_seek,
.flags = AVFMT_GENERIC_INDEX,
.codec_tag = (const AVCodecTag * const []) { ff_codec_wav_tags, 0 },
+ .priv_class = &w64_demuxer_class,
};
#endif /* CONFIG_W64_DEMUXER */
projects / ffmpeg / blobdiff