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lavf/adxdec: Add Autodetection.

This commit is contained in:
Carl Eugen Hoyos 2016-02-01 10:51:46 +01:00
parent 09b3a42495
commit 9ca5b27240
1 changed files with 14 additions and 0 deletions
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14
libavformat/adxdec.c
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@ -34,6 +34,19 @@ typedef struct ADXDemuxerContext {
int header_size; int header_size;
} ADXDemuxerContext; } ADXDemuxerContext;
static int adx_probe(AVProbeData *p)
{
int offset;
if (AV_RB16(p->buf) != 0x8000)
return 0;
offset = AV_RB16(&p->buf[2]);
if ( offset < 8
|| offset > p->buf_size - 4
|| memcmp(p->buf + offset - 2, "(c)CRI", 6))
return 0;
return AVPROBE_SCORE_MAX * 3 / 4;
}
static int adx_read_packet(AVFormatContext *s, AVPacket *pkt) static int adx_read_packet(AVFormatContext *s, AVPacket *pkt)
{ {
ADXDemuxerContext *c = s->priv_data; ADXDemuxerContext *c = s->priv_data;
@ -107,6 +120,7 @@ static int adx_read_header(AVFormatContext *s)
AVInputFormat ff_adx_demuxer = { AVInputFormat ff_adx_demuxer = {
.name = "adx", .name = "adx",
.long_name = NULL_IF_CONFIG_SMALL("CRI ADX"), .long_name = NULL_IF_CONFIG_SMALL("CRI ADX"),
.read_probe = adx_probe,
.priv_data_size = sizeof(ADXDemuxerContext), .priv_data_size = sizeof(ADXDemuxerContext),
.read_header = adx_read_header, .read_header = adx_read_header,
.read_packet = adx_read_packet, .read_packet = adx_read_packet,