Causes some error as the ADPCM predictors aren't known, but
the difference is negligible and not audible.
Signed-off-by: Zane van Iperen <z...@zanevaniperen.com>
---
libavformat/argo_asf.c | 25 ++++++++++++++++++++++++-
1 file changed, 24 insertions(+), 1 deletion(-)
diff --git a/libavformat/argo_asf.c b/libavformat/argo_asf.c
index 6f7d9e93c9..de941caeac 100644
--- a/libavformat/argo_asf.c
+++ b/libavformat/argo_asf.c
@@ -238,12 +238,34 @@ static int argo_asf_read_packet(AVFormatContext *s,
AVPacket *pkt)
pkt->stream_index = st->index;
pkt->duration = asf->ckhdr.num_samples * (ret /
st->codecpar->block_align);
+ pkt->pts = asf->blocks_read * asf->ckhdr.num_samples;
asf->blocks_read += (ret / st->codecpar->block_align);
pkt->flags &= ~AV_PKT_FLAG_CORRUPT;
return 0;
}
+static int argo_asf_seek(AVFormatContext *s, int stream_index,
+ int64_t pts, int flags)
+{
+ ArgoASFDemuxContext *asf = s->priv_data;
+ AVStream *st = s->streams[stream_index];
+ int64_t offset;
+ uint32_t block = pts / asf->ckhdr.num_samples;
+
+ if (block >= asf->ckhdr.num_blocks)
+ return -1;
+
+ offset = asf->fhdr.chunk_offset + ASF_CHUNK_HEADER_SIZE +
+ (block * st->codecpar->block_align);
+
+ if ((offset = avio_seek(s->pb, offset, SEEK_SET)) < 0)
+ return offset;
+
+ asf->blocks_read = block;
+ return 0;
+}
+
/*
* Not actually sure what ASF stands for.
* - Argonaut Sound File?
@@ -255,7 +277,8 @@ AVInputFormat ff_argo_asf_demuxer = {
.priv_data_size = sizeof(ArgoASFDemuxContext),
.read_probe = argo_asf_probe,
.read_header = argo_asf_read_header,
- .read_packet = argo_asf_read_packet
+ .read_packet = argo_asf_read_packet,
+ .read_seek = argo_asf_seek,
};
#endif
--
2.25.4
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
