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mpeg2: fix packets spanning over two buffers.

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This commit is contained in:
Gwenole Beauchesne 2011-09-14 18:11:57 +02:00
parent ce413eb83d
commit ab8f602957
1 changed files with 5 additions and 9 deletions
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14
gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c
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@ -703,6 +703,7 @@ decode_chunks(GstVaapiDecoderMpeg2 *decoder, GstBuffer *buffer, GList *chunks)
GstMpegVideoTypeOffsetSize *tos;
GstVaapiDecoderStatus status;
guchar * const buf = GST_BUFFER_DATA(buffer);
const guint buf_size = GST_BUFFER_SIZE(buffer);
guchar *data;
guint data_size, ofs, pos = 0;
GList *l;
@ -712,16 +713,8 @@ decode_chunks(GstVaapiDecoderMpeg2 *decoder, GstBuffer *buffer, GList *chunks)
tos = l->data;
data = buf + tos->offset;
data_size = tos->size;
if (tos->size < 0) {
if (tos->offset < 4)
return GST_VAAPI_DECODER_STATUS_ERROR_BITSTREAM_PARSER;
priv->sub_buffer = gst_buffer_create_sub(
buffer,
tos->offset - 4,
GST_BUFFER_SIZE(buffer) - (tos->offset - 4)
);
if (tos->size < 0)
break;
}
ofs = tos->offset - pos + tos->size;
gst_vaapi_tsb_pop(priv->tsb, ofs);
@ -785,6 +778,9 @@ decode_chunks(GstVaapiDecoderMpeg2 *decoder, GstBuffer *buffer, GList *chunks)
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS)
break;
}
if (status == GST_VAAPI_DECODER_STATUS_SUCCESS && pos < buf_size)
priv->sub_buffer = gst_buffer_create_sub(buffer, pos, buf_size - pos);
return status;
}