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codecparsers: mpeg2: fix video packet header size checks.
Fix video packet header size checks for: - Sequence Header: 64 bits ; - Sequence Scalable Extension: 10 bits ; - Slice Header: 6 bits. https://bugzilla.gnome.org/show_bug.cgi?id=703668 Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
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1 changed files with 3 additions and 3 deletions
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@ -323,7 +323,7 @@ gst_mpeg_video_packet_parse_sequence_header (const GstMpegVideoPacket * packet,
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g_return_val_if_fail (seqhdr != NULL, FALSE);
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g_return_val_if_fail (seqhdr != NULL, FALSE);
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if (packet->size < 4)
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if (packet->size < 8)
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return FALSE;
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return FALSE;
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gst_bit_reader_init (&br, &packet->data[packet->offset], packet->size);
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gst_bit_reader_init (&br, &packet->data[packet->offset], packet->size);
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@ -543,7 +543,7 @@ gboolean
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g_return_val_if_fail (seqscaleext != NULL, FALSE);
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g_return_val_if_fail (seqscaleext != NULL, FALSE);
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if (packet->size < 5) {
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if (packet->size < 2) {
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GST_DEBUG ("not enough bytes to parse the extension");
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GST_DEBUG ("not enough bytes to parse the extension");
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return FALSE;
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return FALSE;
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}
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}
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@ -962,7 +962,7 @@ gst_mpeg_video_packet_parse_slice_header (const GstMpegVideoPacket * packet,
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g_return_val_if_fail (seqhdr != NULL, FALSE);
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g_return_val_if_fail (seqhdr != NULL, FALSE);
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if (packet->size < 5)
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if (packet->size < 1)
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return FALSE;
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return FALSE;
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gst_bit_reader_init (&br, &packet->data[packet->offset], packet->size);
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gst_bit_reader_init (&br, &packet->data[packet->offset], packet->size);
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