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authorIvan Kalvachev <ikalvachev@gmail.com>2013-12-14 21:29:15 +0200
committerMichael Niedermayer <michaelni@gmx.at>2013-12-22 22:03:47 +0100
commit1c63aed232febf4404659bf006237ee4f7f17c9c (patch)
tree8024b37b264802e26a7c481692b6ea1566e83284 /libavcodec/avcodec.h
parentc19f193c6b239782b10bd9df117da2e50468edf9 (diff)
downloadffmpeg-1c63aed232febf4404659bf006237ee4f7f17c9c.tar.gz
Convert XvMC to hwaccel v3
Signed-off-by: Ivan Kalvachev <ikalvachev@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/avcodec.h')
-rw-r--r--libavcodec/avcodec.h24
1 files changed, 22 insertions, 2 deletions
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index fbf31ef4f6..c614829aaf 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -767,7 +767,13 @@ typedef struct RcOverride{
#define CODEC_CAP_DR1 0x0002
#define CODEC_CAP_TRUNCATED 0x0008
#if FF_API_XVMC
-/* Codec can export data for HW decoding (XvMC). */
+/* Codec can export data for HW decoding. This flag indicates that
+ * the codec would call get_format() with list that might contain HW accelerated
+ * pixel formats (XvMC, VDPAU, VAAPI, etc). The application can pick any of them
+ * including raw image format.
+ * The application can use the passed context to determine bitstream version,
+ * chroma format, resolution etc.
+ */
#define CODEC_CAP_HWACCEL 0x0010
#endif /* FF_API_XVMC */
/**
@@ -1695,7 +1701,7 @@ typedef struct AVCodecContext {
* XVideo Motion Acceleration
* - encoding: forbidden
* - decoding: set by decoder
- * @deprecated XvMC support is slated for removal.
+ * @deprecated XvMC doesn't need it anymore.
*/
attribute_deprecated int xvmc_acceleration;
#endif /* FF_API_XVMC */
@@ -3100,6 +3106,8 @@ typedef struct AVCodec {
int av_codec_get_max_lowres(const AVCodec *codec);
+struct MpegEncContext;
+
/**
* AVHWAccel.
*/
@@ -3161,6 +3169,7 @@ typedef struct AVHWAccel {
*
* Meaningful slice information (codec specific) is guaranteed to
* be parsed at this point. This function is mandatory.
+ * The only exception is XvMC, that works on MB level.
*
* @param avctx the codec context
* @param buf the slice data buffer base
@@ -3188,6 +3197,17 @@ typedef struct AVHWAccel {
* AVCodecContext.release_buffer().
*/
int priv_data_size;
+
+ /**
+ * Called for every Macroblock in a slice.
+ *
+ * XvMC uses it to replace the ff_MPV_decode_mb().
+ * Instead of decoding to raw picture, MB parameters are
+ * stored in an array provided by the video driver.
+ *
+ * @param s the mpeg context
+ */
+ void (*decode_mb)(struct MpegEncContext *s);
} AVHWAccel;
/**