[FFmpeg-devel] [PATCH 06/24] ffmpeg: Enable generic hwaccel support for VAAPI
Mark Thompson
sw at jkqxz.net
Tue Jun 13 01:40:23 EEST 2017
(cherry picked from commit 62a1ef9f26c654a3e988aa465c4ac1d776c4c356)
---
Makefile | 1 -
ffmpeg.h | 2 -
ffmpeg_opt.c | 20 ++++-
ffmpeg_vaapi.c | 233 ---------------------------------------------------------
4 files changed, 16 insertions(+), 240 deletions(-)
delete mode 100644 ffmpeg_vaapi.c
diff --git a/Makefile b/Makefile
index 913a890a78..26f9d93d85 100644
--- a/Makefile
+++ b/Makefile
@@ -34,7 +34,6 @@ $(foreach prog,$(AVBASENAMES),$(eval OBJS-$(prog)-$(CONFIG_OPENCL) += cmdutils_o
OBJS-ffmpeg += ffmpeg_opt.o ffmpeg_filter.o ffmpeg_hw.o
OBJS-ffmpeg-$(CONFIG_VIDEOTOOLBOX) += ffmpeg_videotoolbox.o
OBJS-ffmpeg-$(CONFIG_LIBMFX) += ffmpeg_qsv.o
-OBJS-ffmpeg-$(CONFIG_VAAPI) += ffmpeg_vaapi.o
ifndef CONFIG_VIDEOTOOLBOX
OBJS-ffmpeg-$(CONFIG_VDA) += ffmpeg_videotoolbox.o
endif
diff --git a/ffmpeg.h b/ffmpeg.h
index 5c115cf9a3..231d362f5f 100644
--- a/ffmpeg.h
+++ b/ffmpeg.h
@@ -665,8 +665,6 @@ int dxva2_init(AVCodecContext *s);
int vda_init(AVCodecContext *s);
int videotoolbox_init(AVCodecContext *s);
int qsv_init(AVCodecContext *s);
-int vaapi_decode_init(AVCodecContext *avctx);
-int vaapi_device_init(const char *device);
int cuvid_init(AVCodecContext *s);
HWDevice *hw_device_get_by_name(const char *name);
diff --git a/ffmpeg_opt.c b/ffmpeg_opt.c
index 6755e09e47..51671e0dd4 100644
--- a/ffmpeg_opt.c
+++ b/ffmpeg_opt.c
@@ -87,8 +87,8 @@ const HWAccel hwaccels[] = {
AV_HWDEVICE_TYPE_NONE },
#endif
#if CONFIG_VAAPI
- { "vaapi", vaapi_decode_init, HWACCEL_VAAPI, AV_PIX_FMT_VAAPI,
- AV_HWDEVICE_TYPE_NONE },
+ { "vaapi", hwaccel_decode_init, HWACCEL_VAAPI, AV_PIX_FMT_VAAPI,
+ AV_HWDEVICE_TYPE_VAAPI },
#endif
#if CONFIG_CUVID
{ "cuvid", cuvid_init, HWACCEL_CUVID, AV_PIX_FMT_CUDA,
@@ -462,10 +462,22 @@ static int opt_sdp_file(void *optctx, const char *opt, const char *arg)
#if CONFIG_VAAPI
static int opt_vaapi_device(void *optctx, const char *opt, const char *arg)
{
+ HWDevice *dev;
+ const char *prefix = "vaapi:";
+ char *tmp;
int err;
- err = vaapi_device_init(arg);
+ tmp = av_malloc(strlen(prefix) + strlen(arg) + 1);
+ if (!tmp)
+ return AVERROR(ENOMEM);
+ strcpy(tmp, prefix);
+ strcat(tmp, arg);
+ err = hw_device_init_from_string(tmp, &dev);
+ av_free(tmp);
if (err < 0)
- exit_program(1);
+ return err;
+ hw_device_ctx = av_buffer_ref(dev->device_ref);
+ if (!hw_device_ctx)
+ return AVERROR(ENOMEM);
return 0;
}
#endif
diff --git a/ffmpeg_vaapi.c b/ffmpeg_vaapi.c
deleted file mode 100644
index d011cacef7..0000000000
--- a/ffmpeg_vaapi.c
+++ /dev/null
@@ -1,233 +0,0 @@
-/*
- * This file is part of FFmpeg.
- *
- * FFmpeg 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.
- *
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "config.h"
-
-#include "libavutil/avassert.h"
-#include "libavutil/frame.h"
-#include "libavutil/hwcontext.h"
-#include "libavutil/log.h"
-
-#include "ffmpeg.h"
-
-
-static AVClass vaapi_class = {
- .class_name = "vaapi",
- .item_name = av_default_item_name,
- .version = LIBAVUTIL_VERSION_INT,
-};
-
-#define DEFAULT_SURFACES 20
-
-typedef struct VAAPIDecoderContext {
- const AVClass *class;
-
- AVBufferRef *device_ref;
- AVHWDeviceContext *device;
- AVBufferRef *frames_ref;
- AVHWFramesContext *frames;
-
- // The output need not have the same format, width and height as the
- // decoded frames - the copy for non-direct-mapped access is actually
- // a whole vpp instance which can do arbitrary scaling and format
- // conversion.
- enum AVPixelFormat output_format;
-} VAAPIDecoderContext;
-
-
-static int vaapi_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
-{
- InputStream *ist = avctx->opaque;
- VAAPIDecoderContext *ctx = ist->hwaccel_ctx;
- int err;
-
- err = av_hwframe_get_buffer(ctx->frames_ref, frame, 0);
- if (err < 0) {
- av_log(ctx, AV_LOG_ERROR, "Failed to allocate decoder surface.\n");
- } else {
- av_log(ctx, AV_LOG_DEBUG, "Decoder given surface %#x.\n",
- (unsigned int)(uintptr_t)frame->data[3]);
- }
- return err;
-}
-
-static int vaapi_retrieve_data(AVCodecContext *avctx, AVFrame *input)
-{
- InputStream *ist = avctx->opaque;
- VAAPIDecoderContext *ctx = ist->hwaccel_ctx;
- AVFrame *output = 0;
- int err;
-
- av_assert0(input->format == AV_PIX_FMT_VAAPI);
-
- if (ctx->output_format == AV_PIX_FMT_VAAPI) {
- // Nothing to do.
- return 0;
- }
-
- av_log(ctx, AV_LOG_DEBUG, "Retrieve data from surface %#x.\n",
- (unsigned int)(uintptr_t)input->data[3]);
-
- output = av_frame_alloc();
- if (!output)
- return AVERROR(ENOMEM);
-
- output->format = ctx->output_format;
-
- err = av_hwframe_transfer_data(output, input, 0);
- if (err < 0) {
- av_log(ctx, AV_LOG_ERROR, "Failed to transfer data to "
- "output frame: %d.\n", err);
- goto fail;
- }
-
- err = av_frame_copy_props(output, input);
- if (err < 0) {
- av_frame_unref(output);
- goto fail;
- }
-
- av_frame_unref(input);
- av_frame_move_ref(input, output);
- av_frame_free(&output);
-
- return 0;
-
-fail:
- if (output)
- av_frame_free(&output);
- return err;
-}
-
-static void vaapi_decode_uninit(AVCodecContext *avctx)
-{
- InputStream *ist = avctx->opaque;
- VAAPIDecoderContext *ctx = ist->hwaccel_ctx;
-
- if (ctx) {
- av_buffer_unref(&ctx->frames_ref);
- av_buffer_unref(&ctx->device_ref);
- av_free(ctx);
- }
-
- av_buffer_unref(&ist->hw_frames_ctx);
-
- ist->hwaccel_ctx = NULL;
- ist->hwaccel_uninit = NULL;
- ist->hwaccel_get_buffer = NULL;
- ist->hwaccel_retrieve_data = NULL;
-}
-
-int vaapi_decode_init(AVCodecContext *avctx)
-{
- InputStream *ist = avctx->opaque;
- VAAPIDecoderContext *ctx;
- int err;
- int loglevel = (ist->hwaccel_id != HWACCEL_VAAPI ? AV_LOG_VERBOSE
- : AV_LOG_ERROR);
-
- if (ist->hwaccel_ctx)
- vaapi_decode_uninit(avctx);
-
- // We have -hwaccel without -vaapi_device, so just initialise here with
- // the device passed as -hwaccel_device (if -vaapi_device was passed, it
- // will always have been called before now).
- if (!hw_device_ctx) {
- err = vaapi_device_init(ist->hwaccel_device);
- if (err < 0)
- return err;
- }
-
- ctx = av_mallocz(sizeof(*ctx));
- if (!ctx)
- return AVERROR(ENOMEM);
- ctx->class = &vaapi_class;
- ist->hwaccel_ctx = ctx;
-
- ctx->device_ref = av_buffer_ref(hw_device_ctx);
- ctx->device = (AVHWDeviceContext*)ctx->device_ref->data;
-
- ctx->output_format = ist->hwaccel_output_format;
- avctx->pix_fmt = ctx->output_format;
-
- ctx->frames_ref = av_hwframe_ctx_alloc(ctx->device_ref);
- if (!ctx->frames_ref) {
- av_log(ctx, loglevel, "Failed to create VAAPI frame context.\n");
- err = AVERROR(ENOMEM);
- goto fail;
- }
-
- ctx->frames = (AVHWFramesContext*)ctx->frames_ref->data;
-
- ctx->frames->format = AV_PIX_FMT_VAAPI;
- ctx->frames->width = avctx->coded_width;
- ctx->frames->height = avctx->coded_height;
-
- // It would be nice if we could query the available formats here,
- // but unfortunately we don't have a VAConfigID to do it with.
- // For now, just assume an NV12 format (or P010 if 10-bit).
- ctx->frames->sw_format = (avctx->sw_pix_fmt == AV_PIX_FMT_YUV420P10 ?
- AV_PIX_FMT_P010 : AV_PIX_FMT_NV12);
-
- // For frame-threaded decoding, at least one additional surface
- // is needed for each thread.
- ctx->frames->initial_pool_size = DEFAULT_SURFACES;
- if (avctx->active_thread_type & FF_THREAD_FRAME)
- ctx->frames->initial_pool_size += avctx->thread_count;
-
- err = av_hwframe_ctx_init(ctx->frames_ref);
- if (err < 0) {
- av_log(ctx, loglevel, "Failed to initialise VAAPI frame "
- "context: %d\n", err);
- goto fail;
- }
-
- ist->hw_frames_ctx = av_buffer_ref(ctx->frames_ref);
- if (!ist->hw_frames_ctx) {
- err = AVERROR(ENOMEM);
- goto fail;
- }
-
- ist->hwaccel_uninit = &vaapi_decode_uninit;
- ist->hwaccel_get_buffer = &vaapi_get_buffer;
- ist->hwaccel_retrieve_data = &vaapi_retrieve_data;
-
- 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;
-
- av_buffer_unref(&hw_device_ctx);
-
- 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;
-}
--
2.11.0
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