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Fix memory leak for truncated frames 

Originally committed as revision 21900 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2010-02-19 20:19:41 +00:00
parent 251f050481
commit df2235a165
1 changed files with 14 additions and 10 deletions
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24
libavformat/dsicin.c
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@ -162,6 +162,7 @@ static int cin_read_packet(AVFormatContext *s, AVPacket *pkt)
ByteIOContext *pb = s->pb;
CinFrameHeader *hdr = &cin->frame_header;
int rc, palette_type, pkt_size;
int ret;
if (cin->audio_buffer_size == 0) {
rc = cin_read_frame_header(cin, pb);
@ -178,8 +179,9 @@ static int cin_read_packet(AVFormatContext *s, AVPacket *pkt)
/* palette and video packet */
pkt_size = (palette_type + 3) * hdr->pal_colors_count + hdr->video_frame_size;
if (av_new_packet(pkt, 4 + pkt_size))
return AVERROR(ENOMEM);
ret = av_new_packet(pkt, 4 + pkt_size);
if (ret < 0)
return ret;
pkt->stream_index = cin->video_stream_index;
pkt->pts = cin->video_stream_pts++;
@ -189,8 +191,13 @@ static int cin_read_packet(AVFormatContext *s, AVPacket *pkt)
pkt->data[2] = hdr->pal_colors_count >> 8;
pkt->data[3] = hdr->video_frame_type;
if (get_buffer(pb, &pkt->data[4], pkt_size) != pkt_size)
return AVERROR(EIO);
ret = get_buffer(pb, &pkt->data[4], pkt_size);
if (ret < 0) {
av_free_packet(pkt);
return ret;
}
if (ret < pkt_size)
av_shrink_packet(pkt, 4 + ret);
/* sound buffer will be processed on next read_packet() call */
cin->audio_buffer_size = hdr->audio_frame_size;
@ -198,16 +205,13 @@ static int cin_read_packet(AVFormatContext *s, AVPacket *pkt)
}
/* audio packet */
if (av_new_packet(pkt, cin->audio_buffer_size))
return AVERROR(ENOMEM);
ret = av_get_packet(pb, pkt, cin->audio_buffer_size);
if (ret < 0)
return ret;
pkt->stream_index = cin->audio_stream_index;
pkt->pts = cin->audio_stream_pts;
cin->audio_stream_pts += cin->audio_buffer_size * 2 / cin->file_header.audio_frame_size;
if (get_buffer(pb, pkt->data, cin->audio_buffer_size) != cin->audio_buffer_size)
return AVERROR(EIO);
cin->audio_buffer_size = 0;
return 0;
}