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