int rdpgfx_decode_h264(RDPGFX_PLUGIN* gfx, RDPGFX_SURFACE_COMMAND* cmd)
{
int status;
wStream* s;
RDPGFX_H264_BITMAP_STREAM h264;
RdpgfxClientContext* context = (RdpgfxClientContext*) gfx->iface.pInterface;
s = Stream_New(cmd->data, cmd->length);
if (!s)
return -1;
status = rdpgfx_read_h264_metablock(gfx, s, &(h264.meta));
if (status < 0)
{
if (h264.meta.regionRects)
free(h264.meta.regionRects);
if (h264.meta.quantQualityVals)
free(h264.meta.quantQualityVals);
return -1;
}
h264.data = Stream_Pointer(s);
h264.length = (UINT32) Stream_GetRemainingLength(s);
Stream_Free(s, FALSE);
cmd->extra = (void*) &h264;
if (context && context->SurfaceCommand)
{
context->SurfaceCommand(context, cmd);
}
free(h264.meta.regionRects);
free(h264.meta.quantQualityVals);
return 1;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpgfx_decode_AVC420(RDPGFX_PLUGIN* gfx, RDPGFX_SURFACE_COMMAND* cmd)
{
UINT error;
wStream* s;
RDPGFX_AVC420_BITMAP_STREAM h264;
RdpgfxClientContext* context = (RdpgfxClientContext*) gfx->iface.pInterface;
s = Stream_New(cmd->data, cmd->length);
if (!s)
{
WLog_ERR(TAG, "Stream_New failed!");
return CHANNEL_RC_NO_MEMORY;
}
if ((error = rdpgfx_read_h264_metablock(gfx, s, &(h264.meta))))
{
WLog_ERR(TAG, "rdpgfx_read_h264_metablock failed with error %"PRIu32"!", error);
return error;
}
h264.data = Stream_Pointer(s);
h264.length = (UINT32) Stream_GetRemainingLength(s);
Stream_Free(s, FALSE);
cmd->extra = (void*) &h264;
if (context)
{
IFCALLRET(context->SurfaceCommand, error, context, cmd);
if (error)
WLog_ERR(TAG, "context->SurfaceCommand failed with error %"PRIu32"", error);
}
free(h264.meta.regionRects);
free(h264.meta.quantQualityVals);
return error;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpgfx_decode_AVC444(RDPGFX_PLUGIN* gfx, RDPGFX_SURFACE_COMMAND* cmd)
{
UINT error;
UINT32 tmp;
size_t pos1, pos2;
wStream* s;
RDPGFX_AVC444_BITMAP_STREAM h264;
RdpgfxClientContext* context = (RdpgfxClientContext*) gfx->iface.pInterface;
s = Stream_New(cmd->data, cmd->length);
if (!s)
{
WLog_ERR(TAG, "Stream_New failed!");
return CHANNEL_RC_NO_MEMORY;
}
if (Stream_GetRemainingLength(s) < 4)
return ERROR_INVALID_DATA;
Stream_Read_UINT32(s, tmp);
h264.cbAvc420EncodedBitstream1 = tmp & 0x3FFFFFFFUL;
h264.LC = (tmp >> 30UL) & 0x03UL;
if (h264.LC == 0x03)
return ERROR_INVALID_DATA;
pos1 = Stream_GetPosition(s);
if ((error = rdpgfx_read_h264_metablock(gfx, s, &(h264.bitstream[0].meta))))
{
WLog_ERR(TAG, "rdpgfx_read_h264_metablock failed with error %"PRIu32"!", error);
return error;
}
pos2 = Stream_GetPosition(s);
h264.bitstream[0].data = Stream_Pointer(s);
if (h264.LC == 0)
{
tmp = h264.cbAvc420EncodedBitstream1 - pos2 + pos1;
if (Stream_GetRemainingLength(s) < tmp)
return ERROR_INVALID_DATA;
h264.bitstream[0].length = tmp;
Stream_Seek(s, tmp);
if ((error = rdpgfx_read_h264_metablock(gfx, s, &(h264.bitstream[1].meta))))
{
WLog_ERR(TAG, "rdpgfx_read_h264_metablock failed with error %"PRIu32"!", error);
return error;
}
h264.bitstream[1].data = Stream_Pointer(s);
h264.bitstream[1].length = Stream_GetRemainingLength(s);
}
else
{
h264.bitstream[0].length = Stream_GetRemainingLength(s);
memset(&h264.bitstream[1], 0, sizeof(h264.bitstream[1]));
}
Stream_Free(s, FALSE);
cmd->extra = (void*) &h264;
if (context)
{
IFCALLRET(context->SurfaceCommand, error, context, cmd);
if (error)
WLog_ERR(TAG, "context->SurfaceCommand failed with error %"PRIu32"", error);
}
free(h264.bitstream[0].meta.regionRects);
free(h264.bitstream[0].meta.quantQualityVals);
free(h264.bitstream[1].meta.regionRects);
free(h264.bitstream[1].meta.quantQualityVals);
return error;
}
