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g2meet: reset dimensions on header parsing errors

This commit is contained in:
Kostya Shishkov 2013-06-11 18:34:26 +02:00
parent 84d3ff50cd
commit 767ae86cee
1 changed files with 12 additions and 5 deletions
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17
libavcodec/g2meet.c
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@ -646,8 +646,8 @@ static int g2m_decode_frame(AVCodecContext *avctx, void *data,
av_log(avctx, AV_LOG_ERROR,
"Invalid frame dimensions %dx%d\n",
c->width, c->height);
c->width = c->height = 0;
bytestream2_skip(&bc, bytestream2_get_bytes_left(&bc));
ret = AVERROR_INVALIDDATA;
goto header_fail;
}
if (c->width != avctx->width || c->height != avctx->height)
avcodec_set_dimensions(avctx, c->width, c->height);
@ -664,15 +664,18 @@ static int g2m_decode_frame(AVCodecContext *avctx, void *data,
av_log(avctx, AV_LOG_ERROR,
"Invalid tile dimensions %dx%d\n",
c->tile_width, c->tile_height);
return AVERROR_INVALIDDATA;
ret = AVERROR_INVALIDDATA;
goto header_fail;
}
c->tiles_x = (c->width + c->tile_width - 1) / c->tile_width;
c->tiles_y = (c->height + c->tile_height - 1) / c->tile_height;
c->bpp = bytestream2_get_byte(&bc);
chunk_size -= 21;
bytestream2_skip(&bc, chunk_size);
if (g2m_init_buffers(c))
return AVERROR(ENOMEM);
if (g2m_init_buffers(c)) {
ret = AVERROR(ENOMEM);
goto header_fail;
}
got_header = 1;
break;
case TILE_DATA:
@ -778,6 +781,10 @@ static int g2m_decode_frame(AVCodecContext *avctx, void *data,
}
return buf_size;
header_fail:
c->width = c->height = 0;
c->tiles_x = c->tiles_y = 0;
return ret;
}
static av_cold int g2m_decode_init(AVCodecContext *avctx)