mirror of
https://git.videolan.org/git/ffmpeg.git
synced 2024-08-20 16:25:04 +02:00
539 lines
18 KiB
C
539 lines
18 KiB
C
/*
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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 "config.h"
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#include <fcntl.h>
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#include <unistd.h>
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#include <va/va.h>
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#if HAVE_VAAPI_X11
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# include <va/va_x11.h>
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#endif
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#if HAVE_VAAPI_DRM
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# include <va/va_drm.h>
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#endif
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#include "libavutil/avassert.h"
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#include "libavutil/avconfig.h"
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#include "libavutil/buffer.h"
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#include "libavutil/frame.h"
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#include "libavutil/hwcontext.h"
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#include "libavutil/hwcontext_vaapi.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixfmt.h"
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#include "libavcodec/vaapi.h"
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#include "avconv.h"
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static AVClass vaapi_class = {
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.class_name = "vaapi",
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.item_name = av_default_item_name,
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.version = LIBAVUTIL_VERSION_INT,
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};
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#define DEFAULT_SURFACES 20
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typedef struct VAAPIDecoderContext {
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const AVClass *class;
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AVBufferRef *device_ref;
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AVHWDeviceContext *device;
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AVBufferRef *frames_ref;
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AVHWFramesContext *frames;
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VAProfile va_profile;
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VAEntrypoint va_entrypoint;
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VAConfigID va_config;
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VAContextID va_context;
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enum AVPixelFormat decode_format;
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int decode_width;
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int decode_height;
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int decode_surfaces;
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// The output need not have the same format, width and height as the
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// decoded frames - the copy for non-direct-mapped access is actually
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// a whole vpp instance which can do arbitrary scaling and format
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// conversion.
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enum AVPixelFormat output_format;
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struct vaapi_context decoder_vaapi_context;
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} VAAPIDecoderContext;
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static int vaapi_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
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{
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InputStream *ist = avctx->opaque;
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VAAPIDecoderContext *ctx = ist->hwaccel_ctx;
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int err;
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err = av_hwframe_get_buffer(ctx->frames_ref, frame, 0);
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if (err < 0) {
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av_log(ctx, AV_LOG_ERROR, "Failed to allocate decoder surface.\n");
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} else {
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av_log(ctx, AV_LOG_DEBUG, "Decoder given surface %#x.\n",
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(unsigned int)(uintptr_t)frame->data[3]);
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}
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return err;
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}
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static int vaapi_retrieve_data(AVCodecContext *avctx, AVFrame *input)
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{
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InputStream *ist = avctx->opaque;
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VAAPIDecoderContext *ctx = ist->hwaccel_ctx;
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AVFrame *output = 0;
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int err;
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av_assert0(input->format == AV_PIX_FMT_VAAPI);
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if (ctx->output_format == AV_PIX_FMT_VAAPI) {
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// Nothing to do.
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return 0;
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}
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av_log(ctx, AV_LOG_DEBUG, "Retrieve data from surface %#x.\n",
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(unsigned int)(uintptr_t)input->data[3]);
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output = av_frame_alloc();
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if (!output)
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return AVERROR(ENOMEM);
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output->format = ctx->output_format;
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err = av_hwframe_transfer_data(output, input, 0);
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if (err < 0) {
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av_log(ctx, AV_LOG_ERROR, "Failed to transfer data to "
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"output frame: %d.\n", err);
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goto fail;
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}
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err = av_frame_copy_props(output, input);
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if (err < 0) {
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av_frame_unref(output);
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goto fail;
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}
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av_frame_unref(input);
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av_frame_move_ref(input, output);
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av_frame_free(&output);
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return 0;
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fail:
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if (output)
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av_frame_free(&output);
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return err;
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}
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static const struct {
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enum AVCodecID codec_id;
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int codec_profile;
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VAProfile va_profile;
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} vaapi_profile_map[] = {
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#define MAP(c, p, v) { AV_CODEC_ID_ ## c, FF_PROFILE_ ## p, VAProfile ## v }
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MAP(MPEG2VIDEO, MPEG2_SIMPLE, MPEG2Simple ),
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MAP(MPEG2VIDEO, MPEG2_MAIN, MPEG2Main ),
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MAP(H263, UNKNOWN, H263Baseline),
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MAP(MPEG4, MPEG4_SIMPLE, MPEG4Simple ),
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MAP(MPEG4, MPEG4_ADVANCED_SIMPLE,
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MPEG4AdvancedSimple),
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MAP(MPEG4, MPEG4_MAIN, MPEG4Main ),
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MAP(H264, H264_CONSTRAINED_BASELINE,
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H264ConstrainedBaseline),
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MAP(H264, H264_BASELINE, H264Baseline),
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MAP(H264, H264_MAIN, H264Main ),
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MAP(H264, H264_HIGH, H264High ),
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#if VA_CHECK_VERSION(0, 37, 0)
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MAP(HEVC, HEVC_MAIN, HEVCMain ),
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#endif
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MAP(WMV3, VC1_SIMPLE, VC1Simple ),
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MAP(WMV3, VC1_MAIN, VC1Main ),
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MAP(WMV3, VC1_COMPLEX, VC1Advanced ),
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MAP(WMV3, VC1_ADVANCED, VC1Advanced ),
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MAP(VC1, VC1_SIMPLE, VC1Simple ),
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MAP(VC1, VC1_MAIN, VC1Main ),
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MAP(VC1, VC1_COMPLEX, VC1Advanced ),
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MAP(VC1, VC1_ADVANCED, VC1Advanced ),
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#if VA_CHECK_VERSION(0, 35, 0)
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MAP(VP8, UNKNOWN, VP8Version0_3 ),
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#endif
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#if VA_CHECK_VERSION(0, 37, 1)
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MAP(VP9, VP9_0, VP9Profile0 ),
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#endif
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#undef MAP
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};
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static int vaapi_build_decoder_config(VAAPIDecoderContext *ctx,
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AVCodecContext *avctx,
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int fallback_allowed)
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{
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AVVAAPIDeviceContext *hwctx = ctx->device->hwctx;
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AVVAAPIHWConfig *hwconfig = NULL;
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AVHWFramesConstraints *constraints = NULL;
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VAStatus vas;
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int err, i, j;
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int loglevel = fallback_allowed ? AV_LOG_VERBOSE : AV_LOG_ERROR;
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const AVCodecDescriptor *codec_desc;
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const AVPixFmtDescriptor *pix_desc;
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enum AVPixelFormat pix_fmt;
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VAProfile profile, *profile_list = NULL;
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int profile_count, exact_match, alt_profile;
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codec_desc = avcodec_descriptor_get(avctx->codec_id);
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if (!codec_desc) {
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err = AVERROR(EINVAL);
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goto fail;
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}
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profile_count = vaMaxNumProfiles(hwctx->display);
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profile_list = av_malloc(profile_count * sizeof(VAProfile));
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if (!profile_list) {
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err = AVERROR(ENOMEM);
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goto fail;
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}
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vas = vaQueryConfigProfiles(hwctx->display,
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profile_list, &profile_count);
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if (vas != VA_STATUS_SUCCESS) {
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av_log(ctx, loglevel, "Failed to query profiles: %d (%s).\n",
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vas, vaErrorStr(vas));
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err = AVERROR(EIO);
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goto fail;
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}
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profile = VAProfileNone;
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exact_match = 0;
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for (i = 0; i < FF_ARRAY_ELEMS(vaapi_profile_map); i++) {
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int profile_match = 0;
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if (avctx->codec_id != vaapi_profile_map[i].codec_id)
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continue;
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if (avctx->profile == vaapi_profile_map[i].codec_profile)
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profile_match = 1;
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profile = vaapi_profile_map[i].va_profile;
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for (j = 0; j < profile_count; j++) {
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if (profile == profile_list[j]) {
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exact_match = profile_match;
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break;
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}
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}
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if (j < profile_count) {
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if (exact_match)
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break;
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alt_profile = vaapi_profile_map[i].codec_profile;
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}
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}
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av_freep(&profile_list);
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if (profile == VAProfileNone) {
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av_log(ctx, loglevel, "No VAAPI support for codec %s.\n",
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codec_desc->name);
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err = AVERROR(ENOSYS);
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goto fail;
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}
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if (!exact_match) {
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if (fallback_allowed || !hwaccel_lax_profile_check) {
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av_log(ctx, loglevel, "No VAAPI support for codec %s "
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"profile %d.\n", codec_desc->name, avctx->profile);
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if (!fallback_allowed) {
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av_log(ctx, AV_LOG_WARNING, "If you want attempt decoding "
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"anyway with a possibly-incompatible profile, add "
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"the option -hwaccel_lax_profile_check.\n");
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}
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err = AVERROR(EINVAL);
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goto fail;
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} else {
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av_log(ctx, AV_LOG_WARNING, "No VAAPI support for codec %s "
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"profile %d: trying instead with profile %d.\n",
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codec_desc->name, avctx->profile, alt_profile);
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av_log(ctx, AV_LOG_WARNING, "This may fail or give "
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"incorrect results, depending on your hardware.\n");
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}
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}
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ctx->va_profile = profile;
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ctx->va_entrypoint = VAEntrypointVLD;
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vas = vaCreateConfig(hwctx->display, ctx->va_profile,
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ctx->va_entrypoint, 0, 0, &ctx->va_config);
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if (vas != VA_STATUS_SUCCESS) {
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av_log(ctx, AV_LOG_ERROR, "Failed to create decode pipeline "
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"configuration: %d (%s).\n", vas, vaErrorStr(vas));
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err = AVERROR(EIO);
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goto fail;
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}
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hwconfig = av_hwdevice_hwconfig_alloc(ctx->device_ref);
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if (!hwconfig) {
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err = AVERROR(ENOMEM);
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goto fail;
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}
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hwconfig->config_id = ctx->va_config;
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constraints = av_hwdevice_get_hwframe_constraints(ctx->device_ref,
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hwconfig);
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if (!constraints)
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goto fail;
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// Decide on the decoder target format.
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// If the user specified something with -hwaccel_output_format then
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// try to use that to minimise conversions later.
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ctx->decode_format = AV_PIX_FMT_NONE;
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if (ctx->output_format != AV_PIX_FMT_NONE &&
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ctx->output_format != AV_PIX_FMT_VAAPI) {
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for (i = 0; constraints->valid_sw_formats[i] != AV_PIX_FMT_NONE; i++) {
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if (constraints->valid_sw_formats[i] == ctx->decode_format) {
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ctx->decode_format = ctx->output_format;
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av_log(ctx, AV_LOG_DEBUG, "Using decode format %s (output "
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"format).\n", av_get_pix_fmt_name(ctx->decode_format));
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break;
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}
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}
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}
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// Otherwise, we would like to try to choose something which matches the
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// decoder output, but there isn't enough information available here to
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// do so. Assume for now that we are always dealing with YUV 4:2:0, so
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// pick a format which does that.
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if (ctx->decode_format == AV_PIX_FMT_NONE) {
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for (i = 0; constraints->valid_sw_formats[i] != AV_PIX_FMT_NONE; i++) {
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pix_fmt = constraints->valid_sw_formats[i];
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pix_desc = av_pix_fmt_desc_get(pix_fmt);
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if (pix_desc->nb_components == 3 &&
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pix_desc->log2_chroma_w == 1 &&
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pix_desc->log2_chroma_h == 1) {
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ctx->decode_format = pix_fmt;
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av_log(ctx, AV_LOG_DEBUG, "Using decode format %s (format "
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"matched).\n", av_get_pix_fmt_name(ctx->decode_format));
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break;
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}
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}
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}
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// Otherwise pick the first in the list and hope for the best.
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if (ctx->decode_format == AV_PIX_FMT_NONE) {
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ctx->decode_format = constraints->valid_sw_formats[0];
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av_log(ctx, AV_LOG_DEBUG, "Using decode format %s (first in list).\n",
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av_get_pix_fmt_name(ctx->decode_format));
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if (i > 1) {
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// There was a choice, and we picked randomly. Warn the user
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// that they might want to choose intelligently instead.
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av_log(ctx, AV_LOG_WARNING, "Using randomly chosen decode "
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"format %s.\n", av_get_pix_fmt_name(ctx->decode_format));
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}
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}
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// Ensure the picture size is supported by the hardware.
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ctx->decode_width = avctx->coded_width;
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ctx->decode_height = avctx->coded_height;
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if (ctx->decode_width < constraints->min_width ||
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ctx->decode_height < constraints->min_height ||
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ctx->decode_width > constraints->max_width ||
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ctx->decode_height >constraints->max_height) {
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av_log(ctx, AV_LOG_ERROR, "VAAPI hardware does not support image "
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"size %dx%d (constraints: width %d-%d height %d-%d).\n",
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ctx->decode_width, ctx->decode_height,
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constraints->min_width, constraints->max_width,
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constraints->min_height, constraints->max_height);
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err = AVERROR(EINVAL);
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goto fail;
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}
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av_hwframe_constraints_free(&constraints);
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av_freep(&hwconfig);
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// Decide how many reference frames we need. This might be doable more
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// nicely based on the codec and input stream?
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ctx->decode_surfaces = DEFAULT_SURFACES;
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// For frame-threaded decoding, one additional surfaces is needed for
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// each thread.
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if (avctx->active_thread_type & FF_THREAD_FRAME)
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ctx->decode_surfaces += avctx->thread_count;
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return 0;
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fail:
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av_hwframe_constraints_free(&constraints);
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av_freep(&hwconfig);
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vaDestroyConfig(hwctx->display, ctx->va_config);
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av_freep(&profile_list);
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return err;
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}
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static void vaapi_decode_uninit(AVCodecContext *avctx)
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{
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InputStream *ist = avctx->opaque;
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VAAPIDecoderContext *ctx = ist->hwaccel_ctx;
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if (ctx) {
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AVVAAPIDeviceContext *hwctx = ctx->device->hwctx;
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if (ctx->va_context != VA_INVALID_ID) {
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vaDestroyContext(hwctx->display, ctx->va_context);
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ctx->va_context = VA_INVALID_ID;
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}
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if (ctx->va_config != VA_INVALID_ID) {
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vaDestroyConfig(hwctx->display, ctx->va_config);
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ctx->va_config = VA_INVALID_ID;
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}
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av_buffer_unref(&ctx->frames_ref);
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av_buffer_unref(&ctx->device_ref);
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av_free(ctx);
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}
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av_buffer_unref(&ist->hw_frames_ctx);
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ist->hwaccel_ctx = 0;
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ist->hwaccel_uninit = 0;
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ist->hwaccel_get_buffer = 0;
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ist->hwaccel_retrieve_data = 0;
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}
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int vaapi_decode_init(AVCodecContext *avctx)
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{
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InputStream *ist = avctx->opaque;
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AVVAAPIDeviceContext *hwctx;
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AVVAAPIFramesContext *avfc;
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VAAPIDecoderContext *ctx;
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VAStatus vas;
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int err;
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int loglevel = (ist->hwaccel_id != HWACCEL_VAAPI ? AV_LOG_VERBOSE
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: AV_LOG_ERROR);
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if (ist->hwaccel_ctx)
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vaapi_decode_uninit(avctx);
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// We have -hwaccel without -vaapi_device, so just initialise here with
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// the device passed as -hwaccel_device (if -vaapi_device was passed, it
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// will always have been called before now).
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if (!hw_device_ctx) {
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err = vaapi_device_init(ist->hwaccel_device);
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if (err < 0)
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return err;
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}
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ctx = av_mallocz(sizeof(*ctx));
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if (!ctx)
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return AVERROR(ENOMEM);
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ctx->class = &vaapi_class;
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ctx->device_ref = av_buffer_ref(hw_device_ctx);
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ctx->device = (AVHWDeviceContext*)ctx->device_ref->data;
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ctx->va_config = VA_INVALID_ID;
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ctx->va_context = VA_INVALID_ID;
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hwctx = ctx->device->hwctx;
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ctx->output_format = ist->hwaccel_output_format;
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err = vaapi_build_decoder_config(ctx, avctx,
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ist->hwaccel_id != HWACCEL_VAAPI);
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if (err < 0) {
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av_log(ctx, loglevel, "No supported configuration for this codec.");
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goto fail;
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}
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avctx->pix_fmt = ctx->output_format;
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ctx->frames_ref = av_hwframe_ctx_alloc(ctx->device_ref);
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if (!ctx->frames_ref) {
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av_log(ctx, loglevel, "Failed to create VAAPI frame context.\n");
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err = AVERROR(ENOMEM);
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goto fail;
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}
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ctx->frames = (AVHWFramesContext*)ctx->frames_ref->data;
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ctx->frames->format = AV_PIX_FMT_VAAPI;
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ctx->frames->sw_format = ctx->decode_format;
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ctx->frames->width = ctx->decode_width;
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ctx->frames->height = ctx->decode_height;
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ctx->frames->initial_pool_size = ctx->decode_surfaces;
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err = av_hwframe_ctx_init(ctx->frames_ref);
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if (err < 0) {
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av_log(ctx, loglevel, "Failed to initialise VAAPI frame "
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"context: %d\n", err);
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goto fail;
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}
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avfc = ctx->frames->hwctx;
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vas = vaCreateContext(hwctx->display, ctx->va_config,
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ctx->decode_width, ctx->decode_height,
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VA_PROGRESSIVE,
|
|
avfc->surface_ids, avfc->nb_surfaces,
|
|
&ctx->va_context);
|
|
if (vas != VA_STATUS_SUCCESS) {
|
|
av_log(ctx, AV_LOG_ERROR, "Failed to create decode pipeline "
|
|
"context: %d (%s).\n", vas, vaErrorStr(vas));
|
|
err = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
|
|
av_log(ctx, AV_LOG_DEBUG, "VAAPI decoder (re)init complete.\n");
|
|
|
|
// We would like to set this on the AVCodecContext for use by whoever gets
|
|
// the frames from the decoder, but unfortunately the AVCodecContext we
|
|
// have here need not be the "real" one (H.264 makes many copies for
|
|
// threading purposes). To avoid the problem, we instead store it in the
|
|
// InputStream and propagate it from there.
|
|
ist->hw_frames_ctx = av_buffer_ref(ctx->frames_ref);
|
|
if (!ist->hw_frames_ctx) {
|
|
err = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
ist->hwaccel_ctx = ctx;
|
|
ist->hwaccel_uninit = vaapi_decode_uninit;
|
|
ist->hwaccel_get_buffer = vaapi_get_buffer;
|
|
ist->hwaccel_retrieve_data = vaapi_retrieve_data;
|
|
|
|
ctx->decoder_vaapi_context.display = hwctx->display;
|
|
ctx->decoder_vaapi_context.config_id = ctx->va_config;
|
|
ctx->decoder_vaapi_context.context_id = ctx->va_context;
|
|
avctx->hwaccel_context = &ctx->decoder_vaapi_context;
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
vaapi_decode_uninit(avctx);
|
|
return err;
|
|
}
|
|
|
|
static AVClass *vaapi_log = &vaapi_class;
|
|
|
|
av_cold int vaapi_device_init(const char *device)
|
|
{
|
|
int err;
|
|
|
|
err = av_hwdevice_ctx_create(&hw_device_ctx, AV_HWDEVICE_TYPE_VAAPI,
|
|
device, NULL, 0);
|
|
if (err < 0) {
|
|
av_log(&vaapi_log, AV_LOG_ERROR, "Failed to create a VAAPI device\n");
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|