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/*
* Video Decode and Presentation API for UNIX (VDPAU) is used for
* HW decode acceleration for MPEG-1/2, MPEG-4 ASP, H.264 and VC-1.
*
* Copyright (c) 2008 NVIDIA
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <limits.h>
#include "libavutil/avassert.h"
#include "avcodec.h"
#include "internal.h"
#include "h264.h"
#include "vc1.h"
#undef NDEBUG
#include <assert.h>
#include "vdpau.h"
#include "vdpau_internal.h"
/**
* @addtogroup VDPAU_Decoding
*
* @{
*/
static int vdpau_error(VdpStatus status)
{
switch (status) {
case VDP_STATUS_OK:
return 0;
case VDP_STATUS_NO_IMPLEMENTATION:
return AVERROR(ENOSYS);
case VDP_STATUS_DISPLAY_PREEMPTED:
return AVERROR(EIO);
case VDP_STATUS_INVALID_HANDLE:
return AVERROR(EBADF);
case VDP_STATUS_INVALID_POINTER:
return AVERROR(EFAULT);
case VDP_STATUS_RESOURCES:
return AVERROR(ENOBUFS);
case VDP_STATUS_HANDLE_DEVICE_MISMATCH:
return AVERROR(EXDEV);
case VDP_STATUS_ERROR:
return AVERROR(EIO);
default:
return AVERROR(EINVAL);
}
}
int ff_vdpau_common_init(AVCodecContext *avctx, VdpDecoderProfile profile,
int level)
{
VDPAUHWContext *hwctx = avctx->hwaccel_context;
VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
VdpVideoSurfaceQueryCapabilities *surface_query_caps;
VdpDecoderQueryCapabilities *decoder_query_caps;
VdpDecoderCreate *create;
void *func;
VdpStatus status;
VdpBool supported;
uint32_t max_level, max_mb, max_width, max_height;
/* See vdpau/vdpau.h for alignment constraints. */
uint32_t width = (avctx->coded_width + 1) & ~1;
uint32_t height = (avctx->coded_height + 3) & ~3;
vdctx->width = UINT32_MAX;
vdctx->height = UINT32_MAX;
hwctx->reset = 0;
if (hwctx->context.decoder != VDP_INVALID_HANDLE) {
vdctx->decoder = hwctx->context.decoder;
vdctx->render = hwctx->context.render;
vdctx->device = VDP_INVALID_HANDLE;
return 0; /* Decoder created by user */
}
vdctx->device = hwctx->device;
vdctx->get_proc_address = hwctx->get_proc_address;
if (level < 0)
return AVERROR(ENOTSUP);
status = vdctx->get_proc_address(vdctx->device,
VDP_FUNC_ID_VIDEO_SURFACE_QUERY_CAPABILITIES,
&func);
if (status != VDP_STATUS_OK)
return vdpau_error(status);
else
surface_query_caps = func;
status = surface_query_caps(vdctx->device, VDP_CHROMA_TYPE_420, &supported,
&max_width, &max_height);
if (status != VDP_STATUS_OK)
return vdpau_error(status);
if (supported != VDP_TRUE ||
max_width < width || max_height < height)
return AVERROR(ENOTSUP);
status = vdctx->get_proc_address(vdctx->device,
VDP_FUNC_ID_DECODER_QUERY_CAPABILITIES,
&func);
if (status != VDP_STATUS_OK)
return vdpau_error(status);
else
decoder_query_caps = func;
status = decoder_query_caps(vdctx->device, profile, &supported, &max_level,
&max_mb, &max_width, &max_height);
if (status != VDP_STATUS_OK)
return vdpau_error(status);
if (supported != VDP_TRUE || max_level < level ||
max_width < width || max_height < height)
return AVERROR(ENOTSUP);
status = vdctx->get_proc_address(vdctx->device, VDP_FUNC_ID_DECODER_CREATE,
&func);
if (status != VDP_STATUS_OK)
return vdpau_error(status);
else
create = func;
status = vdctx->get_proc_address(vdctx->device, VDP_FUNC_ID_DECODER_RENDER,
&func);
if (status != VDP_STATUS_OK)
return vdpau_error(status);
else
vdctx->render = func;
status = create(vdctx->device, profile, width, height, avctx->refs,
&vdctx->decoder);
if (status == VDP_STATUS_OK) {
vdctx->width = avctx->coded_width;
vdctx->height = avctx->coded_height;
}
return vdpau_error(status);
}
int ff_vdpau_common_uninit(AVCodecContext *avctx)
{
VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
VdpDecoderDestroy *destroy;
void *func;
VdpStatus status;
if (vdctx->device == VDP_INVALID_HANDLE)
return 0; /* Decoder created and destroyed by user */
if (vdctx->width == UINT32_MAX && vdctx->height == UINT32_MAX)
return 0;
status = vdctx->get_proc_address(vdctx->device,
VDP_FUNC_ID_DECODER_DESTROY, &func);
if (status != VDP_STATUS_OK)
return vdpau_error(status);
else
destroy = func;
status = destroy(vdctx->decoder);
return vdpau_error(status);
}
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 && !hwctx->reset)
return 0;
avctx->hwaccel->uninit(avctx);
return avctx->hwaccel->init(avctx);
}
int ff_vdpau_common_start_frame(struct vdpau_picture_context *pic_ctx,
av_unused const uint8_t *buffer,
av_unused uint32_t size)
{
pic_ctx->bitstream_buffers_allocated = 0;
pic_ctx->bitstream_buffers_used = 0;
pic_ctx->bitstream_buffers = NULL;
return 0;
}
int ff_vdpau_common_end_frame(AVCodecContext *avctx, AVFrame *frame,
struct vdpau_picture_context *pic_ctx)
{
VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
VdpVideoSurface surf = ff_vdpau_get_surface_id(frame);
VdpStatus status;
int val;
val = ff_vdpau_common_reinit(avctx);
if (val < 0)
return val;
status = vdctx->render(vdctx->decoder, surf, (void *)&pic_ctx->info,
pic_ctx->bitstream_buffers_used,
pic_ctx->bitstream_buffers);
av_freep(&pic_ctx->bitstream_buffers);
return vdpau_error(status);
}
#if CONFIG_H263_VDPAU_HWACCEL || CONFIG_MPEG1_VDPAU_HWACCEL || \
CONFIG_MPEG2_VDPAU_HWACCEL || CONFIG_MPEG4_VDPAU_HWACCEL || \
CONFIG_VC1_VDPAU_HWACCEL || CONFIG_WMV3_VDPAU_HWACCEL
int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)
{
MpegEncContext *s = avctx->priv_data;
Picture *pic = s->current_picture_ptr;
struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
int val;
val = ff_vdpau_common_end_frame(avctx, pic->f, pic_ctx);
if (val < 0)
return val;
ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
return 0;
}
#endif
int ff_vdpau_add_buffer(struct vdpau_picture_context *pic_ctx,
const uint8_t *buf, uint32_t size)
{
VdpBitstreamBuffer *buffers = pic_ctx->bitstream_buffers;
buffers = av_fast_realloc(buffers, &pic_ctx->bitstream_buffers_allocated,
(pic_ctx->bitstream_buffers_used + 1) * sizeof(*buffers));
if (!buffers)
return AVERROR(ENOMEM);
pic_ctx->bitstream_buffers = buffers;
buffers += pic_ctx->bitstream_buffers_used++;
buffers->struct_version = VDP_BITSTREAM_BUFFER_VERSION;
buffers->bitstream = buf;
buffers->bitstream_bytes = size;
return 0;
}
int av_vdpau_get_profile(AVCodecContext *avctx, VdpDecoderProfile *profile)
{
#define PROFILE(prof) \
do { \
*profile = prof; \
return 0; \
} while (0)
switch (avctx->codec_id) {
case AV_CODEC_ID_MPEG1VIDEO: PROFILE(VDP_DECODER_PROFILE_MPEG1);
case AV_CODEC_ID_MPEG2VIDEO:
switch (avctx->profile) {
case FF_PROFILE_MPEG2_MAIN: PROFILE(VDP_DECODER_PROFILE_MPEG2_MAIN);
case FF_PROFILE_MPEG2_SIMPLE: PROFILE(VDP_DECODER_PROFILE_MPEG2_SIMPLE);
default: return AVERROR(EINVAL);
}
case AV_CODEC_ID_H263: PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_ASP);
case AV_CODEC_ID_MPEG4:
switch (avctx->profile) {
case FF_PROFILE_MPEG4_SIMPLE: PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_SP);
case FF_PROFILE_MPEG4_ADVANCED_SIMPLE: PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_ASP);
default: return AVERROR(EINVAL);
}
case AV_CODEC_ID_H264:
switch (avctx->profile & ~FF_PROFILE_H264_INTRA) {
case FF_PROFILE_H264_CONSTRAINED_BASELINE:
case FF_PROFILE_H264_BASELINE: PROFILE(VDP_DECODER_PROFILE_H264_BASELINE);
case FF_PROFILE_H264_MAIN: PROFILE(VDP_DECODER_PROFILE_H264_MAIN);
case FF_PROFILE_H264_HIGH: PROFILE(VDP_DECODER_PROFILE_H264_HIGH);
default: return AVERROR(EINVAL);
}
case AV_CODEC_ID_WMV3:
case AV_CODEC_ID_VC1:
switch (avctx->profile) {
case FF_PROFILE_VC1_SIMPLE: PROFILE(VDP_DECODER_PROFILE_VC1_SIMPLE);
case FF_PROFILE_VC1_MAIN: PROFILE(VDP_DECODER_PROFILE_VC1_MAIN);
case FF_PROFILE_VC1_ADVANCED: PROFILE(VDP_DECODER_PROFILE_VC1_ADVANCED);
default: return AVERROR(EINVAL);
}
}
return AVERROR(EINVAL);
}
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;
}
/* @}*/
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