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yuv4mpeg: return proper error codes.

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Fixes Bug 373.

CC:libav-stable@libav.org
This commit is contained in:
Anton Khirnov 2012-10-05 15:53:32 +02:00
parent e4cbf7529b
commit d3a72becc6
1 changed files with 15 additions and 7 deletions
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22
libavformat/yuv4mpeg.c
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@ -367,7 +367,7 @@ static int yuv4_read_packet(AVFormatContext *s, AVPacket *pkt)
{
int i;
char header[MAX_FRAME_HEADER+1];
int packet_size, width, height;
int packet_size, width, height, ret;
AVStream *st = s->streams[0];
struct frame_attributes *s1 = s->priv_data;
@ -378,20 +378,28 @@ static int yuv4_read_packet(AVFormatContext *s, AVPacket *pkt)
break;
}
}
if (i == MAX_FRAME_HEADER)
return -1;
if (s->pb->error)
return s->pb->error;
else if (s->pb->eof_reached)
return AVERROR_EOF;
else if (i == MAX_FRAME_HEADER)
return AVERROR_INVALIDDATA;
if (strncmp(header, Y4M_FRAME_MAGIC, strlen(Y4M_FRAME_MAGIC)))
return -1;
return AVERROR_INVALIDDATA;
width = st->codec->width;
height = st->codec->height;
packet_size = avpicture_get_size(st->codec->pix_fmt, width, height);
if (packet_size < 0)
return -1;
return packet_size;
if (av_get_packet(s->pb, pkt, packet_size) != packet_size)
return AVERROR(EIO);
ret = av_get_packet(s->pb, pkt, packet_size);
if (ret < 0)
return ret;
else if (ret != packet_size)
return s->pb->eof_reached ? AVERROR_EOF : AVERROR(EIO);
if (st->codec->coded_frame) {
st->codec->coded_frame->interlaced_frame = s1->interlaced_frame;