ffmpeg: Enable generic hwaccel support for VDPAU

(cherry picked from commit aa6b2e081c504cb99f5e2e0ceb45295ef24bdac2)

Makefile

@@ -39,7 +39,6 @@ OBJS-ffmpeg-$(CONFIG_VDA)     += ffmpeg_videotoolbox.o
 endif
 OBJS-ffmpeg-$(CONFIG_CUVID)   += ffmpeg_cuvid.o
 OBJS-ffmpeg-$(HAVE_DXVA2_LIB) += ffmpeg_dxva2.o
-OBJS-ffmpeg-$(HAVE_VDPAU_X11) += ffmpeg_vdpau.o
 OBJS-ffserver                 += ffserver_config.o
 
 TESTTOOLS   = audiogen videogen rotozoom tiny_psnr tiny_ssim base64 audiomatch

ffmpeg.h

@@ -660,7 +660,6 @@ int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame);
 
 int ffmpeg_parse_options(int argc, char **argv);
 
-int vdpau_init(AVCodecContext *s);
 int dxva2_init(AVCodecContext *s);
 int vda_init(AVCodecContext *s);
 int videotoolbox_init(AVCodecContext *s);

ffmpeg_opt.c

@@ -67,8 +67,8 @@
 
 const HWAccel hwaccels[] = {
 #if HAVE_VDPAU_X11
-    { "vdpau", vdpau_init, HWACCEL_VDPAU, AV_PIX_FMT_VDPAU,
+    { "vdpau", hwaccel_decode_init, HWACCEL_VDPAU, AV_PIX_FMT_VDPAU,
-      AV_HWDEVICE_TYPE_NONE },
+      AV_HWDEVICE_TYPE_VDPAU },
 #endif
 #if HAVE_DXVA2_LIB
     { "dxva2", dxva2_init, HWACCEL_DXVA2, AV_PIX_FMT_DXVA2_VLD,

ffmpeg_vdpau.c

@@ -1,159 +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 <stdint.h>
-
-#include "ffmpeg.h"
-
-#include "libavcodec/vdpau.h"
-
-#include "libavutil/buffer.h"
-#include "libavutil/frame.h"
-#include "libavutil/hwcontext.h"
-#include "libavutil/hwcontext_vdpau.h"
-#include "libavutil/pixfmt.h"
-
-typedef struct VDPAUContext {
-    AVBufferRef *hw_frames_ctx;
-    AVFrame *tmp_frame;
-} VDPAUContext;
-
-static void vdpau_uninit(AVCodecContext *s)
-{
-    InputStream  *ist = s->opaque;
-    VDPAUContext *ctx = ist->hwaccel_ctx;
-
-    ist->hwaccel_uninit        = NULL;
-    ist->hwaccel_get_buffer    = NULL;
-    ist->hwaccel_retrieve_data = NULL;
-
-    av_buffer_unref(&ctx->hw_frames_ctx);
-    av_frame_free(&ctx->tmp_frame);
-
-    av_freep(&ist->hwaccel_ctx);
-    av_freep(&s->hwaccel_context);
-}
-
-static int vdpau_get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
-{
-    InputStream         *ist = s->opaque;
-    VDPAUContext        *ctx = ist->hwaccel_ctx;
-
-    return av_hwframe_get_buffer(ctx->hw_frames_ctx, frame, 0);
-}
-
-static int vdpau_retrieve_data(AVCodecContext *s, AVFrame *frame)
-{
-    InputStream        *ist = s->opaque;
-    VDPAUContext       *ctx = ist->hwaccel_ctx;
-    int ret;
-
-    ret = av_hwframe_transfer_data(ctx->tmp_frame, frame, 0);
-    if (ret < 0)
-        return ret;
-
-    ret = av_frame_copy_props(ctx->tmp_frame, frame);
-    if (ret < 0) {
-        av_frame_unref(ctx->tmp_frame);
-        return ret;
-    }
-
-    av_frame_unref(frame);
-    av_frame_move_ref(frame, ctx->tmp_frame);
-
-    return 0;
-}
-
-static int vdpau_alloc(AVCodecContext *s)
-{
-    InputStream  *ist = s->opaque;
-    int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
-    VDPAUContext *ctx;
-    int ret;
-
-    AVBufferRef          *device_ref = NULL;
-    AVHWDeviceContext    *device_ctx;
-    AVVDPAUDeviceContext *device_hwctx;
-    AVHWFramesContext    *frames_ctx;
-
-    ctx = av_mallocz(sizeof(*ctx));
-    if (!ctx)
-        return AVERROR(ENOMEM);
-
-    ist->hwaccel_ctx           = ctx;
-    ist->hwaccel_uninit        = vdpau_uninit;
-    ist->hwaccel_get_buffer    = vdpau_get_buffer;
-    ist->hwaccel_retrieve_data = vdpau_retrieve_data;
-
-    ctx->tmp_frame = av_frame_alloc();
-    if (!ctx->tmp_frame)
-        goto fail;
-
-    ret = av_hwdevice_ctx_create(&device_ref, AV_HWDEVICE_TYPE_VDPAU,
-                                 ist->hwaccel_device, NULL, 0);
-    if (ret < 0)
-        goto fail;
-    device_ctx   = (AVHWDeviceContext*)device_ref->data;
-    device_hwctx = device_ctx->hwctx;
-
-    ctx->hw_frames_ctx = av_hwframe_ctx_alloc(device_ref);
-    if (!ctx->hw_frames_ctx)
-        goto fail;
-    av_buffer_unref(&device_ref);
-
-    frames_ctx            = (AVHWFramesContext*)ctx->hw_frames_ctx->data;
-    frames_ctx->format    = AV_PIX_FMT_VDPAU;
-    frames_ctx->sw_format = s->sw_pix_fmt;
-    frames_ctx->width     = s->coded_width;
-    frames_ctx->height    = s->coded_height;
-
-    ret = av_hwframe_ctx_init(ctx->hw_frames_ctx);
-    if (ret < 0)
-        goto fail;
-
-    if (av_vdpau_bind_context(s, device_hwctx->device, device_hwctx->get_proc_address, 0))
-        goto fail;
-
-    av_log(NULL, AV_LOG_VERBOSE, "Using VDPAU to decode input stream #%d:%d.\n",
-           ist->file_index, ist->st->index);
-
-    return 0;
-
-fail:
-    av_log(NULL, loglevel, "VDPAU init failed for stream #%d:%d.\n",
-           ist->file_index, ist->st->index);
-    av_buffer_unref(&device_ref);
-    vdpau_uninit(s);
-    return AVERROR(EINVAL);
-}
-
-int vdpau_init(AVCodecContext *s)
-{
-    InputStream *ist = s->opaque;
-
-    if (!ist->hwaccel_ctx) {
-        int ret = vdpau_alloc(s);
-        if (ret < 0)
-            return ret;
-    }
-
-    ist->hwaccel_get_buffer    = vdpau_get_buffer;
-    ist->hwaccel_retrieve_data = vdpau_retrieve_data;
-
-    return 0;
-}