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vdpau: Check return values of the bitreader functions

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This commit is contained in:
Sebastian Dröge 2010-10-03 15:55:22 +02:00
parent 4903e140e2
commit c5023baecf
1 changed files with 8 additions and 4 deletions
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12
sys/vdpau/mpeg/gstvdpmpegdec.c
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@ -408,14 +408,14 @@ gst_vdp_mpeg_dec_parse_data (GstBaseVideoDecoder * base_video_decoder,
GstVdpMpegFrame *mpeg_frame; GstVdpMpegFrame *mpeg_frame;
GstFlowReturn ret = GST_FLOW_OK; GstFlowReturn ret = GST_FLOW_OK;
GstBitReader b_reader = GST_BIT_READER_INIT_FROM_BUFFER (buf); GstBitReader b_reader = GST_BIT_READER_INIT_FROM_BUFFER (buf);
guint32 sync_code;
guint8 start_code; guint8 start_code;
/* skip sync_code */ /* skip sync_code */
gst_bit_reader_get_bits_uint32 (&b_reader, &sync_code, 8 * 3); gst_bit_reader_skip (&b_reader, 8 * 3);
/* start_code */ /* start_code */
gst_bit_reader_get_bits_uint8 (&b_reader, &start_code, 8); if (!gst_bit_reader_get_bits_uint8 (&b_reader, &start_code, 8))
return GST_FLOW_ERROR;
mpeg_frame = GST_VDP_MPEG_FRAME_CAST (frame); mpeg_frame = GST_VDP_MPEG_FRAME_CAST (frame);
@ -464,7 +464,11 @@ gst_vdp_mpeg_dec_parse_data (GstBaseVideoDecoder * base_video_decoder,
guint8 ext_code; guint8 ext_code;
/* ext_code */ /* ext_code */
gst_bit_reader_get_bits_uint8 (&b_reader, &ext_code, 4); if (!gst_bit_reader_get_bits_uint8 (&b_reader, &ext_code, 4)) {
ret = GST_FLOW_ERROR;
gst_buffer_unref (buf);
goto done;
}
GST_DEBUG_OBJECT (mpeg_dec, "MPEG_PACKET_EXTENSION: %d", ext_code); GST_DEBUG_OBJECT (mpeg_dec, "MPEG_PACKET_EXTENSION: %d", ext_code);