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Code Issues Releases Activity

Kill the magic field in xvmc structure.

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Originally committed as revision 17338 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ivan Kalvachev 2009-02-15 17:21:37 +00:00
parent 9043202e6e
commit 11f8aa042d
2 changed files with 6 additions and 6 deletions
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10
libavcodec/mpegvideo_xvmc.c
View File

@ -38,7 +38,7 @@
void ff_xvmc_init_block(MpegEncContext *s)
{
struct xvmc_pixfmt_render *render = (struct xvmc_pixfmt_render*)s->current_picture.data[2];
assert(render && render->magic_id == AV_XVMC_RENDER_MAGIC);
assert(render && render->unique_id == AV_XVMC_RENDER_MAGIC);
s->block = (DCTELEM *)(render->data_blocks + render->next_free_data_block_num * 64);
}
@ -68,7 +68,7 @@ int ff_xvmc_field_start(MpegEncContext*s, AVCodecContext *avctx)
const int mb_block_count = 4 + (1 << s->chroma_format);
assert(avctx);
if (!render || render->magic_id != AV_XVMC_RENDER_MAGIC ||
if (!render || render->unique_id != AV_XVMC_RENDER_MAGIC ||
!render->data_blocks || !render->mv_blocks) {
av_log(avctx, AV_LOG_ERROR,
"Render token doesn't look as expected.\n");
@ -100,7 +100,7 @@ int ff_xvmc_field_start(MpegEncContext*s, AVCodecContext *avctx)
next = (struct xvmc_pixfmt_render*)s->next_picture.data[2];
if (!next)
return -1;
if (next->magic_id != AV_XVMC_RENDER_MAGIC)
if (next->unique_id != AV_XVMC_RENDER_MAGIC)
return -1;
render->p_future_surface = next->p_surface;
// no return here, going to set forward prediction
@ -108,7 +108,7 @@ int ff_xvmc_field_start(MpegEncContext*s, AVCodecContext *avctx)
last = (struct xvmc_pixfmt_render*)s->last_picture.data[2];
if (!last)
last = render; // predict second field from the first
if (last->magic_id != AV_XVMC_RENDER_MAGIC)
if (last->unique_id != AV_XVMC_RENDER_MAGIC)
return -1;
render->p_past_surface = last->p_surface;
return 0;
@ -162,7 +162,7 @@ void ff_xvmc_decode_mb(MpegEncContext *s)
// start of XVMC-specific code
render = (struct xvmc_pixfmt_render*)s->current_picture.data[2];
assert(render);
assert(render->magic_id == AV_XVMC_RENDER_MAGIC);
assert(render->unique_id == AV_XVMC_RENDER_MAGIC);
assert(render->mv_blocks);
// take the next free macroblock

2
libavcodec/xvmc.h
View File

@ -38,7 +38,7 @@ struct xvmc_pixfmt_render {
Once set these values are not supposed to be modified.
*/
//@{
int magic_id; ///< used as a check against memory corruption by regular pixel routines or other API structure
int unique_id; ///< used as a check against memory corruption by regular pixel routines or other API structure
short* data_blocks;
XvMCMacroBlock* mv_blocks;