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avformat/img2dec: Reuse main IO context instead of reopening a single file

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Fixes part of Ticket4849

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-12-26 19:38:13 +01:00
parent e9e8782202
commit e70d56b8ad
1 changed files with 9 additions and 3 deletions
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12
libavformat/img2dec.c
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@ -391,7 +391,12 @@ int ff_img_read_packet(AVFormatContext *s1, AVPacket *pkt)
return AVERROR(EIO);
}
for (i = 0; i < 3; i++) {
if (avio_open2(&f[i], filename, AVIO_FLAG_READ,
if (s1->pb &&
!strcmp(filename_bytes, s->path) &&
!s->loop &&
!s->split_planes) {
f[i] = s1->pb;
} else if (avio_open2(&f[i], filename, AVIO_FLAG_READ,
&s1->interrupt_callback, NULL) < 0) {
if (i >= 1)
break;
@ -479,7 +484,7 @@ int ff_img_read_packet(AVFormatContext *s1, AVPacket *pkt)
ret[i] = avio_read(f[i], pkt->data + pkt->size, size[i]);
}
}
if (!s->is_pipe)
if (!s->is_pipe && f[i] != s1->pb)
avio_closep(&f[i]);
if (ret[i] > 0)
pkt->size += ret[i];
@ -508,7 +513,8 @@ int ff_img_read_packet(AVFormatContext *s1, AVPacket *pkt)
fail:
if (!s->is_pipe) {
for (i = 0; i < 3; i++) {
avio_closep(&f[i]);
if (f[i] != s1->pb)
avio_closep(&f[i]);
}
}
return res;