[FFmpeg-devel] [PATCH v4 2/5] ffmpeg: VAAPI hwaccel helper and related initialisation
Mark Thompson
sw at jkqxz.net
Sat Jan 23 20:14:29 CET 2016
---
Makefile | 1 +
configure | 5 +
ffmpeg.c | 6 +
ffmpeg.h | 5 +
ffmpeg_opt.c | 16 ++
ffmpeg_vaapi.c | 633 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
6 files changed, 666 insertions(+)
create mode 100644 ffmpeg_vaapi.c
diff --git a/Makefile b/Makefile
index f3bd5f6..4cccffd 100644
--- a/Makefile
+++ b/Makefile
@@ -37,6 +37,7 @@ OBJS-ffmpeg-$(CONFIG_VDA) += ffmpeg_videotoolbox.o
endif
OBJS-ffmpeg-$(CONFIG_VIDEOTOOLBOX) += ffmpeg_videotoolbox.o
OBJS-ffmpeg-$(CONFIG_LIBMFX) += ffmpeg_qsv.o
+OBJS-ffmpeg-$(CONFIG_VAAPI_RECENT) += ffmpeg_vaapi.o
OBJS-ffserver += ffserver_config.o
TESTTOOLS = audiogen videogen rotozoom tiny_psnr tiny_ssim base64
diff --git a/configure b/configure
index cd386b4..791334f 100755
--- a/configure
+++ b/configure
@@ -1971,6 +1971,7 @@ HAVE_LIST="
section_data_rel_ro
texi2html
threads
+ vaapi_drm
vaapi_x11
vdpau_x11
xlib
@@ -5749,6 +5750,10 @@ enabled vaapi && enabled xlib &&
check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
enable vaapi_x11
+enabled vaapi &&
+ check_lib2 "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
+ enable vaapi_drm
+
enabled vdpau &&
check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
disable vdpau
diff --git a/ffmpeg.c b/ffmpeg.c
index 97aca10..5439761 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -2603,6 +2603,12 @@ static int init_output_stream(OutputStream *ost, char *error, int error_len)
!av_dict_get(ost->encoder_opts, "ab", NULL, 0))
av_dict_set(&ost->encoder_opts, "b", "128000", 0);
+#if CONFIG_VAAPI_RECENT
+ if(ost->enc->type == AVMEDIA_TYPE_VIDEO &&
+ strstr(ost->enc->name, "vaapi"))
+ vaapi_hardware_set_options(&ost->encoder_opts);
+#endif
+
if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
if (ret == AVERROR_EXPERIMENTAL)
abort_codec_experimental(codec, 1);
diff --git a/ffmpeg.h b/ffmpeg.h
index 20322b0..2134213 100644
--- a/ffmpeg.h
+++ b/ffmpeg.h
@@ -65,6 +65,7 @@ enum HWAccelID {
HWACCEL_VDA,
HWACCEL_VIDEOTOOLBOX,
HWACCEL_QSV,
+ HWACCEL_VAAPI,
};
typedef struct HWAccel {
@@ -577,5 +578,9 @@ int vda_init(AVCodecContext *s);
int videotoolbox_init(AVCodecContext *s);
int qsv_init(AVCodecContext *s);
int qsv_transcode_init(OutputStream *ost);
+int vaapi_decode_init(AVCodecContext *s);
+
+int vaapi_hardware_init(const char *device);
+int vaapi_hardware_set_options(AVDictionary **dict);
#endif /* FFMPEG_H */
diff --git a/ffmpeg_opt.c b/ffmpeg_opt.c
index 9b341cf..fd41600 100644
--- a/ffmpeg_opt.c
+++ b/ffmpeg_opt.c
@@ -82,6 +82,9 @@ const HWAccel hwaccels[] = {
#if CONFIG_LIBMFX
{ "qsv", qsv_init, HWACCEL_QSV, AV_PIX_FMT_QSV },
#endif
+#if CONFIG_VAAPI_RECENT
+ { "vaapi", vaapi_decode_init, HWACCEL_VAAPI, AV_PIX_FMT_VAAPI },
+#endif
{ 0 },
};
@@ -442,6 +445,15 @@ static int opt_sdp_file(void *optctx, const char *opt, const char *arg)
return 0;
}
+#if CONFIG_VAAPI_RECENT
+static int opt_vaapi(void *optctx, const char *opt, const char *arg)
+{
+ if(vaapi_hardware_init(arg))
+ exit_program(1);
+ return 0;
+}
+#endif
+
/**
* Parse a metadata specifier passed as 'arg' parameter.
* @param arg metadata string to parse
@@ -3438,5 +3450,9 @@ const OptionDef options[] = {
{ "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },
"disable data" },
+#if CONFIG_VAAPI_RECENT
+ { "vaapi", HAS_ARG, { .func_arg = opt_vaapi }, "set VAAPI hardware context" },
+#endif
+
{ NULL, },
};
diff --git a/ffmpeg_vaapi.c b/ffmpeg_vaapi.c
new file mode 100644
index 0000000..9a71cc2
--- /dev/null
+++ b/ffmpeg_vaapi.c
@@ -0,0 +1,633 @@
+/*
+ * VAAPI helper for hardware-accelerated decoding.
+ *
+ * Copyright (C) 2016 Mark Thompson <mrt at jkqxz.net>
+ *
+ * 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 <string.h>
+
+#include <fcntl.h>
+#include <pthread.h>
+#include <unistd.h>
+
+#include "ffmpeg.h"
+
+#include "libavutil/avassert.h"
+#include "libavutil/avconfig.h"
+#include "libavutil/buffer.h"
+#include "libavutil/frame.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/opt.h"
+#include "libavutil/pixfmt.h"
+#include "libavutil/vaapi.h"
+
+#include "libavcodec/vaapi.h"
+
+#include <va/va_x11.h>
+#include <va/va_drm.h>
+
+
+static AVClass vaapi_class = {
+ .class_name = "VAAPI/driver",
+ .item_name = av_default_item_name,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+
+#define DEFAULT_SURFACES 20
+
+typedef struct VAAPIDecoderContext {
+ const AVClass *class;
+
+ AVVAAPIHardwareContext *hardware_context;
+ AVVAAPIPipelineConfig config;
+ AVVAAPIPipelineContext codec;
+ AVVAAPISurfaceConfig output;
+ AVVAAPISurfacePool pool;
+
+ int codec_initialised;
+} VAAPIDecoderContext;
+
+
+static int vaapi_get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
+{
+ InputStream *ist = s->opaque;
+ VAAPIDecoderContext *ctx = ist->hwaccel_ctx;
+ AVFrame *new_frame;
+
+ av_assert0(frame->format == AV_PIX_FMT_VAAPI);
+
+ new_frame = av_frame_alloc();
+ if(!new_frame)
+ return AVERROR(ENOMEM);
+
+ av_vaapi_surface_pool_get(&ctx->pool, new_frame);
+
+ av_log(ctx, AV_LOG_DEBUG, "Decoder given reference to surface %#x.\n",
+ (VASurfaceID)new_frame->data[3]);
+
+ av_frame_copy_props(new_frame, frame);
+ av_frame_unref(frame);
+ av_frame_move_ref(frame, new_frame);
+ return 0;
+}
+
+static int vaapi_retrieve_data(AVCodecContext *avctx, AVFrame *input_frame)
+{
+ InputStream *ist = avctx->opaque;
+ VAAPIDecoderContext *ctx = ist->hwaccel_ctx;
+ AVVAAPISurfaceConfig *output = &ctx->output;
+ AVFrame *output_frame;
+ int err;
+
+ av_log(ctx, AV_LOG_DEBUG, "Decoder output in surface %#x.\n",
+ (VASurfaceID)input_frame->data[3]);
+
+ if(output->av_format == AV_PIX_FMT_VAAPI) {
+ // Nothing to do.
+ return 0;
+ }
+
+ output_frame = av_frame_alloc();
+ if(!output_frame)
+ return AVERROR(ENOMEM);
+
+ output_frame->format = output->av_format;
+ output_frame->width = input_frame->width;
+ output_frame->height = input_frame->height;
+
+ err = av_frame_get_buffer(output_frame, 32);
+ if(err) {
+ av_log(ctx, AV_LOG_ERROR, "Failed to get buffer for output frame: "
+ "%d (%s).\n", err, av_err2str(err));
+ return err;
+ }
+
+ err = av_vaapi_copy_from_surface(output_frame, input_frame);
+ if(err) {
+ av_log(ctx, AV_LOG_ERROR, "Failed to copy from output surface: "
+ "%d (%s).\n", err, av_err2str(err));
+ return err;
+ }
+
+ av_frame_copy_props(output_frame, input_frame);
+ av_frame_unref(input_frame);
+ av_frame_move_ref(input_frame, output_frame);
+ return 0;
+}
+
+
+static const struct {
+ enum AVCodecID codec_id;
+ int codec_profile;
+ VAProfile va_profile;
+} vaapi_profile_map[] = {
+#define MAP(c, p, v) { AV_CODEC_ID_ ## c, FF_PROFILE_ ## p, VAProfile ## v }
+ MAP(MPEG2VIDEO, MPEG2_SIMPLE, MPEG2Simple ),
+ MAP(MPEG2VIDEO, MPEG2_MAIN, MPEG2Main ),
+ MAP(H263, UNKNOWN, H263Baseline),
+ MAP(MPEG4, MPEG4_SIMPLE, MPEG4Simple ),
+ MAP(MPEG4, MPEG4_ADVANCED_SIMPLE,
+ MPEG4AdvancedSimple),
+ MAP(MPEG4, MPEG4_MAIN, MPEG4Main ),
+ MAP(H264, H264_CONSTRAINED_BASELINE,
+ H264ConstrainedBaseline),
+ MAP(H264, H264_BASELINE, H264Baseline),
+ MAP(H264, H264_MAIN, H264Main ),
+ MAP(H264, H264_HIGH, H264High ),
+ MAP(HEVC, HEVC_MAIN, HEVCMain ),
+ MAP(WMV3, VC1_SIMPLE, VC1Simple ),
+ MAP(WMV3, VC1_MAIN, VC1Main ),
+ MAP(WMV3, VC1_COMPLEX, VC1Advanced ),
+ MAP(WMV3, VC1_ADVANCED, VC1Advanced ),
+ MAP(VC1, VC1_SIMPLE, VC1Simple ),
+ MAP(VC1, VC1_MAIN, VC1Main ),
+ MAP(VC1, VC1_COMPLEX, VC1Advanced ),
+ MAP(VC1, VC1_ADVANCED, VC1Advanced ),
+ MAP(MJPEG, UNKNOWN, JPEGBaseline),
+ MAP(VP8, UNKNOWN, VP8Version0_3),
+ MAP(VP9, VP9_0, VP9Profile0 ),
+#undef MAP
+};
+
+static VAProfile vaapi_find_profile(const AVCodecContext *avctx)
+{
+ VAProfile result = VAProfileNone;
+ int i;
+ for(i = 0; i < FF_ARRAY_ELEMS(vaapi_profile_map); i++) {
+ if(avctx->codec_id != vaapi_profile_map[i].codec_id)
+ continue;
+ result = vaapi_profile_map[i].va_profile;
+ if(avctx->profile == vaapi_profile_map[i].codec_profile)
+ break;
+ // If there isn't an exact match, we will choose the last (highest)
+ // profile in the mapping table. This is unfortunate because it
+ // could well be wrong, but it improves compatibility because streams
+ // and decoders do not necessarily conform to the requirements.
+ // (Without this, a lot of streams in FATE are discarded when then
+ // could have worked - H.264 extended profile which actually decodes
+ // with main, for example.)
+ }
+ return result;
+}
+
+static const struct {
+ enum AVPixelFormat pix_fmt;
+ unsigned int fourcc;
+} vaapi_image_formats[] = {
+ { AV_PIX_FMT_NV12, VA_FOURCC_NV12 },
+ { AV_PIX_FMT_YUV420P, VA_FOURCC_YV12 },
+ { AV_PIX_FMT_GRAY8, VA_FOURCC_Y800 },
+};
+
+static int vaapi_get_pix_fmt(unsigned int fourcc)
+{
+ int i;
+ for(i = 0; i < FF_ARRAY_ELEMS(vaapi_image_formats); i++)
+ if(vaapi_image_formats[i].fourcc == fourcc)
+ return vaapi_image_formats[i].pix_fmt;
+ return 0;
+}
+
+static int vaapi_build_decoder_config(VAAPIDecoderContext *ctx,
+ AVVAAPIPipelineConfig *config,
+ AVVAAPISurfaceConfig *output,
+ AVCodecContext *avctx)
+{
+ VAStatus vas;
+ int i;
+
+ memset(config, 0, sizeof(*config));
+
+ // Pick codec profile to use.
+ {
+ VAProfile profile;
+ int profile_count;
+ VAProfile *profile_list;
+
+ profile = vaapi_find_profile(avctx);
+ if(profile == VAProfileNone) {
+ av_log(ctx, AV_LOG_ERROR, "VAAPI does not support codec %s.\n",
+ avcodec_get_name(avctx->codec_id));
+ return AVERROR(EINVAL);
+ }
+
+ profile_count = vaMaxNumProfiles(ctx->hardware_context->display);
+ profile_list = av_calloc(profile_count, sizeof(VAProfile));
+ if(!profile_list)
+ return AVERROR(ENOMEM);
+
+ vas = vaQueryConfigProfiles(ctx->hardware_context->display,
+ profile_list, &profile_count);
+ if(vas != VA_STATUS_SUCCESS) {
+ av_log(ctx, AV_LOG_ERROR, "Failed to query profiles: %d (%s).\n",
+ vas, vaErrorStr(vas));
+ av_free(profile_list);
+ return AVERROR(EINVAL);
+ }
+
+ while(1) {
+ for(i = 0; i < profile_count; i++) {
+ if(profile_list[i] == profile)
+ break;
+ }
+ if(i < profile_count)
+ break;
+
+ if(profile == VAProfileH264Baseline ||
+ profile == VAProfileH264ConstrainedBaseline) {
+ // Promote both of these to improve compatibility.
+ profile = VAProfileH264Main;
+ continue;
+ }
+
+ profile = VAProfileNone;
+ break;
+ }
+
+ av_free(profile_list);
+
+ if(profile == VAProfileNone) {
+ av_log(ctx, AV_LOG_ERROR, "Hardware does not support codec: "
+ "%s / %d.\n", avcodec_get_name(avctx->codec_id),
+ avctx->profile);
+ return AVERROR(EINVAL);
+ } else {
+ av_log(ctx, AV_LOG_DEBUG, "Hardware supports codec: "
+ "%s / %d -> VAProfile %d.\n",
+ avcodec_get_name(avctx->codec_id), avctx->profile,
+ profile);
+ }
+
+ config->profile = profile;
+ config->entrypoint = VAEntrypointVLD;
+ }
+
+ // Decide on the internal chroma format.
+ {
+ VAConfigAttrib attr;
+
+ // Currently the software only supports YUV420, so just make sure
+ // that the hardware we have does too.
+
+ memset(&attr, 0, sizeof(attr));
+ attr.type = VAConfigAttribRTFormat;
+ vas = vaGetConfigAttributes(ctx->hardware_context->display, config->profile,
+ VAEntrypointVLD, &attr, 1);
+ if(vas != VA_STATUS_SUCCESS) {
+ av_log(ctx, AV_LOG_ERROR, "Failed to fetch config attributes: "
+ "%d (%s).\n", vas, vaErrorStr(vas));
+ return AVERROR(EINVAL);
+ }
+ if(!(attr.value & VA_RT_FORMAT_YUV420)) {
+ av_log(ctx, AV_LOG_ERROR, "Hardware does not support required "
+ "chroma format (%#x).\n", attr.value);
+ return AVERROR(EINVAL);
+ }
+
+ output->rt_format = VA_RT_FORMAT_YUV420;
+ }
+
+ // Decide on the image format.
+ if(avctx->pix_fmt == AV_PIX_FMT_VAAPI) {
+ // We are going to be passing through a VAAPI surface directly:
+ // they will stay as whatever opaque internal format for that time,
+ // and we never need to make VAImages from them.
+
+ av_log(ctx, AV_LOG_DEBUG, "Using VAAPI opaque output format.\n");
+
+ output->av_format = AV_PIX_FMT_VAAPI;
+ memset(&output->image_format, 0, sizeof(output->image_format));
+
+ } else {
+ int image_format_count;
+ VAImageFormat *image_format_list;
+ int pix_fmt;
+
+ // We might want to force a change to the output format here
+ // if we are intending to use VADeriveImage?
+
+ image_format_count = vaMaxNumImageFormats(ctx->hardware_context->display);
+ image_format_list = av_calloc(image_format_count,
+ sizeof(VAImageFormat));
+ if(!image_format_list)
+ return AVERROR(ENOMEM);
+
+ vas = vaQueryImageFormats(ctx->hardware_context->display, image_format_list,
+ &image_format_count);
+ if(vas != VA_STATUS_SUCCESS) {
+ av_log(ctx, AV_LOG_ERROR, "Failed to query image formats: "
+ "%d (%s).\n", vas, vaErrorStr(vas));
+ return AVERROR(EINVAL);
+ }
+
+ for(i = 0; i < image_format_count; i++) {
+ pix_fmt = vaapi_get_pix_fmt(image_format_list[i].fourcc);
+ if(pix_fmt == AV_PIX_FMT_NONE)
+ continue;
+ if(pix_fmt == avctx->pix_fmt)
+ break;
+ }
+ if(i < image_format_count) {
+ av_log(ctx, AV_LOG_DEBUG, "Using desired output format %s "
+ "(%#x).\n", av_get_pix_fmt_name(pix_fmt),
+ image_format_list[i].fourcc);
+ } else {
+ for(i = 0; i < image_format_count; i++) {
+ pix_fmt = vaapi_get_pix_fmt(image_format_list[i].fourcc);
+ if(pix_fmt != AV_PIX_FMT_NONE)
+ break;
+ }
+ if(i >= image_format_count) {
+ av_log(ctx, AV_LOG_ERROR, "No supported output format found.\n");
+ av_free(image_format_list);
+ return AVERROR(EINVAL);
+ }
+ av_log(ctx, AV_LOG_DEBUG, "Using alternate output format %s "
+ "(%#x).\n", av_get_pix_fmt_name(pix_fmt),
+ image_format_list[i].fourcc);
+ }
+
+ output->av_format = pix_fmt;
+ memcpy(&output->image_format, &image_format_list[i],
+ sizeof(VAImageFormat));
+
+ av_free(image_format_list);
+ }
+
+ // Decide how many reference frames we need.
+ {
+ // We should be able to do this in a more sensible way by looking
+ // at how many reference frames the input stream requires.
+ //output->count = DEFAULT_SURFACES;
+ }
+
+ // Test whether the width and height are within allowable limits.
+ {
+ // It would be nice if we could check this here before starting
+ // anything, but unfortunately we need an active VA config to test.
+ // Hence just copy. If it isn't supproted, the pipeline
+ // initialisation below will fail below instead.
+ config->width = output->width = avctx->coded_width;
+ config->height = output->height = avctx->coded_height;
+ }
+
+ return 0;
+}
+
+static void vaapi_decode_uninit(AVCodecContext *avctx)
+{
+ InputStream *ist = avctx->opaque;
+ VAAPIDecoderContext *ctx = ist->hwaccel_ctx;
+
+ if(ctx) {
+ if(ctx->codec_initialised) {
+ av_vaapi_lock_hardware_context(ctx->hardware_context);
+ av_vaapi_surface_pool_uninit(&ctx->pool);
+ av_vaapi_pipeline_uninit(&ctx->codec);
+ av_vaapi_unlock_hardware_context(ctx->hardware_context);
+ ctx->codec_initialised = 0;
+ }
+
+ av_free(ctx);
+ }
+
+
+ ist->hwaccel_ctx = 0;
+ ist->hwaccel_uninit = 0;
+ ist->hwaccel_get_buffer = 0;
+ ist->hwaccel_retrieve_data = 0;
+}
+
+
+static AVVAAPIHardwareContext *vaapi_context;
+
+int vaapi_decode_init(AVCodecContext *avctx)
+{
+ InputStream *ist = avctx->opaque;
+ VAAPIDecoderContext *ctx;
+ int err;
+
+ if(ist->hwaccel_id != HWACCEL_VAAPI)
+ return AVERROR(EINVAL);
+
+ // We have -hwaccel without -vaapi, so just initialise here with the
+ // device passed as -hwaccel_device (if -vaapi was passed, it will
+ // always have been called before now).
+ if(!vaapi_context) {
+ err = vaapi_hardware_init(ist->hwaccel_device);
+ if(err)
+ return err;
+ }
+
+ if(ist->hwaccel_ctx) {
+ ctx = ist->hwaccel_ctx;
+
+ av_vaapi_lock_hardware_context(ctx->hardware_context);
+
+ err = av_vaapi_pipeline_uninit(&ctx->codec);
+ if(err) {
+ av_log(ctx, AV_LOG_ERROR, "Unable to reinit; failed to uninit "
+ "old codec context: %d (%s).\n", err, av_err2str(err));
+ goto fail;
+ }
+
+ err = av_vaapi_surface_pool_uninit(&ctx->pool);
+ if(err) {
+ av_log(ctx, AV_LOG_ERROR, "Unable to reinit; failed to uninit "
+ "old surface pool: %d (%s).\n", err, av_err2str(err));
+ goto fail;
+ }
+
+ } else {
+ if(vaapi_context->decoder_pipeline_config_id != VA_INVALID_ID) {
+ av_log(0, AV_LOG_ERROR, "Multiple simultaneous VAAPI decode "
+ "pipelines are not supported!\n");
+ return AVERROR(EINVAL);
+ }
+
+ ctx = av_mallocz(sizeof(*ctx));
+ if(!ctx)
+ return AVERROR(ENOMEM);
+ ctx->class = &vaapi_class;
+
+ ctx->hardware_context = vaapi_context;
+
+ av_vaapi_lock_hardware_context(ctx->hardware_context);
+ }
+
+ err = vaapi_build_decoder_config(ctx, &ctx->config, &ctx->output, avctx);
+ if(err) {
+ av_log(ctx, AV_LOG_ERROR, "No supported configuration for this codec.");
+ goto fail;
+ }
+
+ err = av_vaapi_surface_pool_init(&ctx->pool, ctx->hardware_context,
+ &ctx->output, DEFAULT_SURFACES);
+ if(err) {
+ av_log(ctx, AV_LOG_ERROR, "Failed to initialise surface pool: "
+ "%d (%s).\n", err, av_err2str(err));
+ goto fail;
+ }
+
+ err = av_vaapi_pipeline_init(&ctx->codec, ctx->hardware_context,
+ &ctx->config, &ctx->pool);
+ if(err) {
+ av_log(ctx, AV_LOG_ERROR, "Failed to initialise codec context: "
+ "%d (%s).\n", err, av_err2str(err));
+ goto fail;
+ }
+ ctx->codec_initialised = 1;
+
+ av_vaapi_unlock_hardware_context(ctx->hardware_context);
+
+ av_log(ctx, AV_LOG_DEBUG, "VAAPI decoder (re)init complete.\n");
+
+ ist->hwaccel_ctx = ctx;
+ ist->hwaccel_uninit = vaapi_decode_uninit;
+ ist->hwaccel_get_buffer = vaapi_get_buffer;
+ ist->hwaccel_retrieve_data = vaapi_retrieve_data;
+
+ avctx->hwaccel_context = ctx->hardware_context;
+
+ ctx->hardware_context->decoder_pipeline_config_id = ctx->codec.config_id;
+ ctx->hardware_context->decoder_pipeline_context_id = ctx->codec.context_id;
+
+ return 0;
+
+ fail:
+ av_vaapi_unlock_hardware_context(ctx->hardware_context);
+ vaapi_decode_uninit(avctx);
+ return err;
+}
+
+int vaapi_hardware_set_options(AVDictionary **dict)
+{
+ av_log(0, AV_LOG_DEBUG, "Setting VAAPI hardware_context.\n");
+ av_dict_set_int(dict, "hardware_context", (int64_t)vaapi_context, 0);
+ return 0;
+}
+
+
+static pthread_mutex_t vaapi_mutex;
+
+static void vaapi_mutex_lock(void *ignored)
+{
+ pthread_mutex_lock(&vaapi_mutex);
+}
+
+static void vaapi_mutex_unlock(void *ignored)
+{
+ pthread_mutex_unlock(&vaapi_mutex);
+}
+
+int vaapi_hardware_init(const char *device)
+{
+ VADisplay display;
+ int drm_fd;
+ Display *x11_display;
+ VAStatus vas;
+ int major, minor, err;
+ pthread_mutexattr_t mutex_attr;
+
+ err = pthread_mutexattr_init(&mutex_attr);
+ if(!err)
+ err = pthread_mutexattr_settype(&mutex_attr, PTHREAD_MUTEX_RECURSIVE);
+ if(!err)
+ err = pthread_mutex_init(&vaapi_mutex, &mutex_attr);
+ if(err) {
+ err = AVERROR(err);
+ av_log(0, AV_LOG_ERROR, "Failed to initialise VAAPI mutex: %s.\n",
+ av_err2str(err));
+ return err;
+ }
+
+ display = 0;
+
+#if HAVE_VAAPI_X11
+ if(!display) {
+ // Try to open the device as an X11 display.
+ x11_display = XOpenDisplay(device);
+ if(!x11_display) {
+ av_log(0, AV_LOG_WARNING, "Cannot open X11 display %s.\n",
+ XDisplayName(device));
+ } else {
+ display = vaGetDisplay(x11_display);
+ if(!display) {
+ av_log(0, AV_LOG_WARNING, "Cannot open a VA display "
+ "from X11 display %s.\n", XDisplayName(device));
+ XCloseDisplay(x11_display);
+ } else {
+ av_log(0, AV_LOG_VERBOSE, "Opened VA display via X11 "
+ "display %s.\n", XDisplayName(device));
+ }
+ }
+ }
+#endif
+
+#if HAVE_VAAPI_DRM
+ if(!display && device) {
+ // Try to open the device as a DRM path.
+ drm_fd = open(device, O_RDWR);
+ if(drm_fd < 0) {
+ err = errno;
+ av_log(0, AV_LOG_WARNING, "Cannot open DRM device %s.\n",
+ device);
+ } else {
+ display = vaGetDisplayDRM(drm_fd);
+ if(!display) {
+ av_log(0, AV_LOG_WARNING, "Cannot open a VA display "
+ "from DRM device %s.\n", device);
+ close(drm_fd);
+ } else {
+ av_log(0, AV_LOG_VERBOSE, "Opened VA display via DRM "
+ "device %s.\n", device);
+ }
+ }
+ }
+#endif
+
+ if(!display) {
+ av_log(0, AV_LOG_ERROR, "No VA display found for device %s.\n",
+ device);
+ return AVERROR(EINVAL);
+ }
+
+ vas = vaInitialize(display, &major, &minor);
+ if(vas != VA_STATUS_SUCCESS) {
+ av_log(0, AV_LOG_ERROR, "Failed to initialise VAAPI "
+ "connection: %d (%s).\n", vas, vaErrorStr(vas));
+ return AVERROR(EINVAL);
+ }
+ av_log(0, AV_LOG_VERBOSE, "Initialised VAAPI connection: "
+ "version %d.%d\n", major, minor);
+
+ vaapi_context = av_vaapi_alloc_hardware_context();
+ if(!vaapi_context)
+ return AVERROR(ENOMEM);
+
+ vaapi_context->display = display;
+ vaapi_context->lock = &vaapi_mutex_lock;
+ vaapi_context->unlock = &vaapi_mutex_unlock;
+
+ vaapi_context->decoder_pipeline_config_id = VA_INVALID_ID;
+ vaapi_context->decoder_pipeline_context_id = VA_INVALID_ID;
+
+ return 0;
+}
--
2.6.4
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