diff --git a/doc/APIchanges b/doc/APIchanges index f17f1cf581..3df116e0df 100644 --- a/doc/APIchanges +++ b/doc/APIchanges @@ -13,6 +13,10 @@ libavutil: 2014-08-09 API changes, most recent first: +2014-09-xx - xxxxxxx - lavc 56.2.0 - vdpau.h + Add av_vdpau_bind_context(). This function should now be used for creating + (or resetting) a AVVDPAUContext instead of av_vdpau_alloc_context(). + 2014-08-xx - xxxxxxx - lavc 56.1.0 - avcodec.h Add AV_PKT_DATA_STEREO3D to export container-level stereo3d information. diff --git a/libavcodec/vdpau.c b/libavcodec/vdpau.c index c3a8a850ae..685309f1ff 100644 --- a/libavcodec/vdpau.c +++ b/libavcodec/vdpau.c @@ -78,6 +78,7 @@ int ff_vdpau_common_init(AVCodecContext *avctx, VdpDecoderProfile profile, vdctx->width = UINT32_MAX; vdctx->height = UINT32_MAX; + hwctx->reset = 0; if (hwctx->context.decoder != VDP_INVALID_HANDLE) { vdctx->decoder = hwctx->context.decoder; @@ -138,12 +139,13 @@ int ff_vdpau_common_uninit(AVCodecContext *avctx) static int ff_vdpau_common_reinit(AVCodecContext *avctx) { + VDPAUHWContext *hwctx = avctx->hwaccel_context; VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data; if (vdctx->device == VDP_INVALID_HANDLE) return 0; /* Decoder created by user */ if (avctx->coded_width == vdctx->width && - avctx->coded_height == vdctx->height) + avctx->coded_height == vdctx->height && !hwctx->reset) return 0; avctx->hwaccel->uninit(avctx); @@ -266,4 +268,22 @@ AVVDPAUContext *av_vdpau_alloc_context(void) return av_mallocz(sizeof(AVVDPAUContext)); } +int av_vdpau_bind_context(AVCodecContext *avctx, VdpDevice device, + VdpGetProcAddress *get_proc, unsigned flags) +{ + VDPAUHWContext *hwctx; + + if (av_reallocp(&avctx->hwaccel_context, sizeof(*hwctx))) + return AVERROR(ENOMEM); + + hwctx = avctx->hwaccel_context; + + memset(hwctx, 0, sizeof(*hwctx)); + hwctx->context.decoder = VDP_INVALID_HANDLE; + hwctx->device = device; + hwctx->get_proc_address = get_proc; + hwctx->reset = 1; + return 0; +} + /* @}*/ diff --git a/libavcodec/vdpau.h b/libavcodec/vdpau.h index 75cb1bf7a3..1714b1e1fb 100644 --- a/libavcodec/vdpau.h +++ b/libavcodec/vdpau.h @@ -130,6 +130,26 @@ typedef struct AVVDPAUContext { #endif } AVVDPAUContext; +/** + * Associate a VDPAU device with a codec context for hardware acceleration. + * This function is meant to be called from the get_format() codec callback, + * or earlier. It can also be called after avcodec_flush_buffers() to change + * the underlying VDPAU device mid-stream (e.g. to recover from non-transparent + * display preemption). + * + * @note get_format() must return AV_PIX_FMT_VDPAU if this function completes + * succesfully. + * + * @param avctx decoding context whose get_format() callback is invoked + * @param device VDPAU device handle to use for hardware acceleration + * @param get_proc_address VDPAU device driver + * @param flags for future use, must be zero + * + * @return 0 on success, an AVERROR code on failure. + */ +int av_vdpau_bind_context(AVCodecContext *avctx, VdpDevice device, + VdpGetProcAddress *get_proc_address, unsigned flags); + /** * Allocate an AVVDPAUContext. * diff --git a/libavcodec/vdpau_internal.h b/libavcodec/vdpau_internal.h index 3e74d46963..69cd455160 100644 --- a/libavcodec/vdpau_internal.h +++ b/libavcodec/vdpau_internal.h @@ -52,6 +52,7 @@ typedef struct VDPAUHWContext { AVVDPAUContext context; VdpDevice device; VdpGetProcAddress *get_proc_address; + char reset; } VDPAUHWContext; typedef struct VDPAUContext { diff --git a/libavcodec/version.h b/libavcodec/version.h index 8cc2fb0317..849c4b2dad 100644 --- a/libavcodec/version.h +++ b/libavcodec/version.h @@ -29,7 +29,7 @@ #include "libavutil/version.h" #define LIBAVCODEC_VERSION_MAJOR 56 -#define LIBAVCODEC_VERSION_MINOR 1 +#define LIBAVCODEC_VERSION_MINOR 2 #define LIBAVCODEC_VERSION_MICRO 0 #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \