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authorMichael Niedermayer <michaelni@gmx.at>2011-10-28 02:53:33 +0200
committerMichael Niedermayer <michaelni@gmx.at>2011-10-28 03:05:16 +0200
commit8d4e44993a87a9b230c5c87cf892dd58adcebcc4 (patch)
treed21f2d4bbcbe37b7876356b60b11f3f8eddb33f5 /libavformat/iv8.c
parentaa638b4600e1fa7a1b64323b8228c459af644a47 (diff)
parent15946eb8a940416d9792c65900273d674f9c152a (diff)
Merge remote-tracking branch 'qatar/master'
* qatar/master: lavc: remove "legacy" mpegvideo decoder. iv8: assemble packets to return complete frames pulse: documentation pulse: introduce pulseaudio input remove the zork pcm seek test Conflicts: configure libavdevice/Makefile libavdevice/alldevices.c libavdevice/avdevice.h libavdevice/pulse.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/iv8.c')
-rw-r--r--libavformat/iv8.c71
1 files changed, 47 insertions, 24 deletions
diff --git a/libavformat/iv8.c b/libavformat/iv8.c
index 03593982bf..1db4c0325a 100644
--- a/libavformat/iv8.c
+++ b/libavformat/iv8.c
@@ -55,33 +55,56 @@ static int read_header(AVFormatContext *s, AVFormatParameters *ap)
static int read_packet(AVFormatContext *s, AVPacket *pkt)
{
- int ret, size, pts, type;
-retry:
- type= avio_rb16(s->pb); // 257 or 258
- size= avio_rb16(s->pb);
-
- avio_rb16(s->pb); //some flags, 0x80 indicates end of frame
- avio_rb16(s->pb); //packet number
- pts=avio_rb32(s->pb);
- avio_rb32(s->pb); //6A 13 E3 88
-
- size -= 12;
- if(size<1)
- return -1;
-
- if(type==258){
- avio_skip(s->pb, size);
- goto retry;
+ int ret, size, pts, type, flags;
+ int first_pkt = 0;
+ int frame_complete = 0;
+
+ while (!frame_complete) {
+
+ type = avio_rb16(s->pb); // 257 or 258
+ size = avio_rb16(s->pb);
+ flags = avio_rb16(s->pb); //some flags, 0x80 indicates end of frame
+ avio_rb16(s->pb); //packet number
+ pts = avio_rb32(s->pb);
+ avio_rb32(s->pb); //6A 13 E3 88
+
+ frame_complete = flags & 0x80;
+
+ size -= 12;
+ if (size < 1)
+ return -1;
+
+ if (type == 258) {
+ avio_skip(s->pb, size);
+ frame_complete = 0;
+ continue;
+ }
+
+ if (!first_pkt) {
+ ret = av_get_packet(s->pb, pkt, size);
+ if (ret < 0)
+ return ret;
+ first_pkt = 1;
+ pkt->pts = pts;
+ pkt->pos -= 16;
+ } else {
+ ret = av_append_packet(s->pb, pkt, size);
+ if (ret < 0) {
+ av_log(s, AV_LOG_ERROR, "failed to grow packet\n");
+ av_free_packet(pkt);
+ return ret;
+ }
+ }
+ if (ret < size) {
+ av_log(s, AV_LOG_ERROR, "Truncated packet! Read %d of %d bytes\n",
+ ret, size);
+ pkt->flags |= AV_PKT_FLAG_CORRUPT;
+ break;
+ }
}
-
- ret= av_get_packet(s->pb, pkt, size);
-
- pkt->pts= pts;
- pkt->pos-=16;
-
pkt->stream_index = 0;
- return ret;
+ return 0;
}
AVInputFormat ff_iv8_demuxer = {