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@@ -0,0 +1,536 @@
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+/******************************************************************************
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+ Copyright (C) 2016 by Hugh Bailey <[email protected]>
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+
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+ This program is free software: you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation, either version 2 of the License, or
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+ (at your option) any later version.
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+
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+ This program 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
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program. If not, see <http://www.gnu.org/licenses/>.
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+******************************************************************************/
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+
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+#include <libavutil/avutil.h>
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+
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+#if LIBAVUTIL_VERSION_INT >= AV_VERSION_INT(55, 27, 100)
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+
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+#include <util/darray.h>
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+#include <util/dstr.h>
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+#include <util/base.h>
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+#include <media-io/video-io.h>
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+#include <obs-module.h>
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+#include <obs-avc.h>
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+
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+#include <unistd.h>
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+
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+#include <libavutil/opt.h>
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+#include <libavutil/pixdesc.h>
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+#include <libavutil/hwcontext.h>
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+#include <libavcodec/avcodec.h>
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+#include <libavformat/avformat.h>
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+#include <libavfilter/avfilter.h>
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+
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+#include "obs-ffmpeg-formats.h"
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+
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+#define do_log(level, format, ...) \
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+ blog(level, "[FFMPEG VAAPI encoder: '%s'] " format, \
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+ obs_encoder_get_name(enc->encoder), ##__VA_ARGS__)
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+
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+#define warn(format, ...) do_log(LOG_WARNING, format, ##__VA_ARGS__)
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+#define info(format, ...) do_log(LOG_INFO, format, ##__VA_ARGS__)
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+#define debug(format, ...) do_log(LOG_DEBUG, format, ##__VA_ARGS__)
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+
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+struct vaapi_encoder {
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+ obs_encoder_t *encoder;
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+
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+ AVBufferRef *vadevice_ref;
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+ AVBufferRef *vaframes_ref;
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+
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+ AVCodec * vaapi;
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+ AVCodecContext *context;
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+
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+ AVFrame *vframe;
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+
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+ DARRAY(uint8_t) buffer;
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+
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+ uint8_t *header;
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+ size_t header_size;
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+
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+ uint8_t *sei;
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+ size_t sei_size;
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+
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+ int height;
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+ bool first_packet;
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+ bool initialized;
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+};
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+
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+static const char *vaapi_getname(void *unused)
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+{
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+ UNUSED_PARAMETER(unused);
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+ return "FFMPEG VAAPI";
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+}
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+
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+static inline bool valid_format(enum video_format format)
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+{
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+ return format == VIDEO_FORMAT_NV12;
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+}
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+
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+static void vaapi_video_info(void *data, struct video_scale_info *info)
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+{
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+ struct vaapi_encoder *enc = data;
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+ enum video_format pref_format;
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+
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+ pref_format = obs_encoder_get_preferred_video_format(enc->encoder);
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+
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+ if (!valid_format(pref_format)) {
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+ pref_format = valid_format(info->format) ? info->format
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+ : VIDEO_FORMAT_NV12;
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+ }
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+
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+ info->format = pref_format;
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+}
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+
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+static bool vaapi_init_codec(struct vaapi_encoder *enc, const char *path)
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+{
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+ int ret;
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+
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+ ret = av_hwdevice_ctx_create(&enc->vadevice_ref, AV_HWDEVICE_TYPE_VAAPI,
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+ path, NULL, 0);
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+ if (ret < 0) {
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+ warn("Failed to create VAAPI device context: %s",
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+ av_err2str(ret));
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+ return false;
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+ }
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+
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+ enc->vaframes_ref = av_hwframe_ctx_alloc(enc->vadevice_ref);
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+ if (!enc->vaframes_ref) {
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+ warn("Failed to alloc HW frames context");
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+ return false;
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+ }
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+
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+ AVHWFramesContext *frames_ctx =
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+ (AVHWFramesContext *)enc->vaframes_ref->data;
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+ frames_ctx->format = AV_PIX_FMT_VAAPI;
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+ frames_ctx->sw_format = AV_PIX_FMT_NV12;
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+ frames_ctx->width = enc->context->width;
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+ frames_ctx->height = enc->context->height;
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+ frames_ctx->initial_pool_size = 20;
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+
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+ ret = av_hwframe_ctx_init(enc->vaframes_ref);
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+ if (ret < 0) {
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+ warn("Failed to init HW frames context: %s", av_err2str(ret));
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+ return false;
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+ }
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+
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+ /* 2. Create software frame and picture */
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+ enc->vframe = av_frame_alloc();
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+ if (!enc->vframe) {
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+ warn("Failed to allocate video frame");
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+ return false;
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+ }
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+
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+ enc->vframe->format = enc->context->pix_fmt;
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+ enc->vframe->width = enc->context->width;
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+ enc->vframe->height = enc->context->height;
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+ enc->vframe->colorspace = enc->context->colorspace;
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+ enc->vframe->color_range = enc->context->color_range;
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+
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+ ret = av_frame_get_buffer(enc->vframe, base_get_alignment());
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+ if (ret < 0) {
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+ warn("Failed to allocate vframe: %s", av_err2str(ret));
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+ return false;
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+ }
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+
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+ /* 3. set up codec */
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+ enc->context->pix_fmt = AV_PIX_FMT_VAAPI;
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+ enc->context->hw_frames_ctx = av_buffer_ref(enc->vaframes_ref);
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+
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+ ret = avcodec_open2(enc->context, enc->vaapi, NULL);
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+ if (ret < 0) {
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+ warn("Failed to open VAAPI codec: %s", av_err2str(ret));
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+ return false;
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+ }
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+
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+ enc->initialized = true;
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+ return true;
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+}
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+
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+static bool vaapi_update(void *data, obs_data_t *settings)
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+{
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+ struct vaapi_encoder *enc = data;
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+
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+ const char *device = obs_data_get_string(settings, "vaapi_device");
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+
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+ int profile = (int)obs_data_get_int(settings, "profile");
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+ int bf = (int)obs_data_get_int(settings, "bf");
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+
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+ int level = (int)obs_data_get_int(settings, "level");
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+ int bitrate = (int)obs_data_get_int(settings, "bitrate");
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+ int keyint_sec = (int)obs_data_get_int(settings, "keyint_sec");
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+
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+ int qp = (int)obs_data_get_int(settings, "qp");
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+ int quality = (int)obs_data_get_int(settings, "quality");
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+
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+ av_opt_set_int(enc->context->priv_data, "qp", qp, 0);
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+ av_opt_set_int(enc->context->priv_data, "quality", quality, 0);
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+
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+ video_t * video = obs_encoder_video(enc->encoder);
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+ const struct video_output_info *voi = video_output_get_info(video);
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+ struct video_scale_info info;
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+
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+ info.format = voi->format;
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+ info.colorspace = voi->colorspace;
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+ info.range = voi->range;
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+
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+ vaapi_video_info(enc, &info);
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+
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+ enc->context->profile = profile;
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+ enc->context->max_b_frames = bf;
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+ enc->context->level = level;
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+ enc->context->bit_rate = bitrate * 1000;
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+
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+ enc->context->width = obs_encoder_get_width(enc->encoder);
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+ enc->context->height = obs_encoder_get_height(enc->encoder);
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+
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+ enc->context->time_base = (AVRational){voi->fps_den, voi->fps_num};
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+ enc->context->pix_fmt = obs_to_ffmpeg_video_format(info.format);
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+ enc->context->colorspace = info.colorspace == VIDEO_CS_709
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+ ? AVCOL_SPC_BT709
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+ : AVCOL_SPC_BT470BG;
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+ enc->context->color_range = info.range == VIDEO_RANGE_FULL
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+ ? AVCOL_RANGE_JPEG
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+ : AVCOL_RANGE_MPEG;
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+
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+ if (keyint_sec > 0) {
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+ enc->context->gop_size =
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+ keyint_sec * voi->fps_num / voi->fps_den;
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+ } else {
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+ enc->context->gop_size = 120;
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+ }
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+
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+ enc->height = enc->context->height;
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+
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+ info("settings:\n"
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+ "\tdevice: %s\n"
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+ "\tqp: %d\n"
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+ "\tquality: %d\n"
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+ "\tprofile: %d\n"
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+ "\tlevel: %d\n"
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+ "\tbitrate: %d\n"
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+ "\tkeyint: %d\n"
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+ "\twidth: %d\n"
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+ "\theight: %d\n"
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+ "\tb-frames: %d\n",
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+ device, qp, quality, profile, level, bitrate,
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+ enc->context->gop_size, enc->context->width,
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+ enc->context->height, enc->context->max_b_frames);
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+
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+ return vaapi_init_codec(enc, device);
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+}
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+
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+static void vaapi_destroy(void *data)
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+{
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+ struct vaapi_encoder *enc = data;
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+
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+ if (enc->initialized) {
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+ AVPacket pkt = {0};
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+ int r_pkt = 1;
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+
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+ while (r_pkt) {
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+#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(57, 40, 101)
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+ if (avcodec_receive_packet(enc->context, &pkt) < 0)
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+ break;
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+#else
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+ if (avcodec_encode_video2(enc->context, &pkt, NULL,
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+ &r_pkt) < 0)
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+ break;
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+#endif
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+
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+ if (r_pkt)
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+ av_packet_unref(&pkt);
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+ }
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+ }
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+
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+ avcodec_close(enc->context);
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+ av_frame_unref(enc->vframe);
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+ av_frame_free(&enc->vframe);
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+ av_buffer_unref(&enc->vaframes_ref);
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+ av_buffer_unref(&enc->vadevice_ref);
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+ da_free(enc->buffer);
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+ bfree(enc->header);
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+ bfree(enc->sei);
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+
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+ bfree(enc);
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+}
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+
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+static void *vaapi_create(obs_data_t *settings, obs_encoder_t *encoder)
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+{
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+ struct vaapi_encoder *enc;
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+ avcodec_register_all();
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+
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+ enc = bzalloc(sizeof(*enc));
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+ enc->encoder = encoder;
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+
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+ int vaapi_codec = (int)obs_data_get_int(settings, "vaapi_codec");
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+
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+ if (vaapi_codec == AV_CODEC_ID_H264) {
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+ enc->vaapi = avcodec_find_encoder_by_name("h264_vaapi");
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+ }
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+
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+ enc->first_packet = true;
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+
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+ blog(LOG_INFO, "---------------------------------");
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+
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+ if (!enc->vaapi) {
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+ warn("Couldn't find encoder");
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+ goto fail;
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+ }
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+
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+ enc->context = avcodec_alloc_context3(enc->vaapi);
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+ if (!enc->context) {
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+ warn("Failed to create codec context");
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+ goto fail;
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+ }
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+
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+ if (!vaapi_update(enc, settings))
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+ goto fail;
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+
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+ return enc;
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+
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+fail:
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+ vaapi_destroy(enc);
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+ return NULL;
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+}
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+
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+static inline void copy_data(AVFrame *pic, const struct encoder_frame *frame,
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+ int height, enum AVPixelFormat format)
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+{
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+ int h_chroma_shift, v_chroma_shift;
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+ av_pix_fmt_get_chroma_sub_sample(
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+ format, &h_chroma_shift, &v_chroma_shift);
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+ for (int plane = 0; plane < MAX_AV_PLANES; plane++) {
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+ if (!frame->data[plane])
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+ continue;
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+
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+ int frame_rowsize = (int)frame->linesize[plane];
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+ int pic_rowsize = pic->linesize[plane];
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+ int bytes = frame_rowsize < pic_rowsize ? frame_rowsize
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+ : pic_rowsize;
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+ int plane_height = height >> (plane ? v_chroma_shift : 0);
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+
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+ for (int y = 0; y < plane_height; y++) {
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+ int pos_frame = y * frame_rowsize;
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+ int pos_pic = y * pic_rowsize;
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+
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+ memcpy(pic->data[plane] + pos_pic,
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+ frame->data[plane] + pos_frame, bytes);
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+ }
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+ }
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+}
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+
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+static bool vaapi_encode(void *data, struct encoder_frame *frame,
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+ struct encoder_packet *packet, bool *received_packet)
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+{
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+ struct vaapi_encoder *enc = data;
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+ AVFrame * hwframe = NULL;
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+ AVPacket av_pkt;
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+ int got_packet;
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+ int ret;
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+
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+ hwframe = av_frame_alloc();
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+ if (!hwframe) {
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+ warn("vaapi_encode: failed to allocate hw frame");
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+ return false;
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+ }
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+
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+ ret = av_hwframe_get_buffer(enc->vaframes_ref, hwframe, 0);
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+ if (ret < 0) {
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+ warn("vaapi_encode: failed to get buffer for hw frame: %s",
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+ av_err2str(ret));
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+ goto fail;
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+ }
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+
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+ copy_data(enc->vframe, frame, enc->height, enc->context->pix_fmt);
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+
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+ enc->vframe->pts = frame->pts;
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+ hwframe->pts = frame->pts;
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+ hwframe->width = enc->vframe->width;
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+ hwframe->height = enc->vframe->height;
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+
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+ ret = av_hwframe_transfer_data(hwframe, enc->vframe, 0);
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+ if (ret < 0) {
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+ warn("vaapi_encode: failed to upload hw frame: %s",
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+ av_err2str(ret));
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+ goto fail;
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+ }
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+
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+ ret = av_frame_copy_props(hwframe, enc->vframe);
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+ if (ret < 0) {
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+ warn("vaapi_encode: failed to copy props to hw frame: %s",
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+ av_err2str(ret));
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+ goto fail;
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+ }
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+
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+ av_init_packet(&av_pkt);
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+
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+#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(57, 40, 101)
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+ ret = avcodec_send_frame(enc->context, hwframe);
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+ if (ret == 0)
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+ ret = avcodec_receive_packet(enc->context, &av_pkt);
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+
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+ got_packet = (ret == 0);
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+
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+ if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
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+ ret = 0;
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+#else
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+ ret = avcodec_encode_video2(
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+ enc->context, &av_pkt, hwframe, &got_packet);
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+#endif
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+ if (ret < 0) {
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+ warn("vaapi_encode: Error encoding: %s", av_err2str(ret));
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+ goto fail;
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+ }
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+
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+ if (got_packet && av_pkt.size) {
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+ if (enc->first_packet) {
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+ uint8_t *new_packet;
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+ size_t size;
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+
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+ enc->first_packet = false;
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|
|
+ obs_extract_avc_headers(av_pkt.data, av_pkt.size,
|
|
|
+ &new_packet, &size, &enc->header,
|
|
|
+ &enc->header_size, &enc->sei,
|
|
|
+ &enc->sei_size);
|
|
|
+
|
|
|
+ da_copy_array(enc->buffer, new_packet, size);
|
|
|
+ bfree(new_packet);
|
|
|
+ } else {
|
|
|
+ da_copy_array(enc->buffer, av_pkt.data, av_pkt.size);
|
|
|
+ }
|
|
|
+
|
|
|
+ packet->pts = av_pkt.pts;
|
|
|
+ packet->dts = av_pkt.dts;
|
|
|
+ packet->data = enc->buffer.array;
|
|
|
+ packet->size = enc->buffer.num;
|
|
|
+ packet->type = OBS_ENCODER_VIDEO;
|
|
|
+ packet->keyframe = obs_avc_keyframe(packet->data, packet->size);
|
|
|
+ *received_packet = true;
|
|
|
+ } else {
|
|
|
+ *received_packet = false;
|
|
|
+ }
|
|
|
+
|
|
|
+ av_packet_unref(&av_pkt);
|
|
|
+ av_frame_free(&hwframe);
|
|
|
+ return true;
|
|
|
+
|
|
|
+fail:
|
|
|
+ av_frame_free(&hwframe);
|
|
|
+ return false;
|
|
|
+}
|
|
|
+
|
|
|
+static void set_visible(obs_properties_t *ppts, const char *name, bool visible)
|
|
|
+{
|
|
|
+ obs_property_t *p = obs_properties_get(ppts, name);
|
|
|
+ obs_property_set_visible(p, visible);
|
|
|
+}
|
|
|
+
|
|
|
+static void vaapi_defaults(obs_data_t *settings)
|
|
|
+{
|
|
|
+ obs_data_set_default_string(
|
|
|
+ settings, "vaapi_device", "/dev/dri/renderD128");
|
|
|
+ obs_data_set_default_int(settings, "vaapi_codec", AV_CODEC_ID_H264);
|
|
|
+ obs_data_set_default_int(settings, "profile",
|
|
|
+ FF_PROFILE_H264_CONSTRAINED_BASELINE);
|
|
|
+ obs_data_set_default_int(settings, "level", 40);
|
|
|
+ obs_data_set_default_int(settings, "bitrate", 2500);
|
|
|
+ obs_data_set_default_int(settings, "keyint_sec", 0);
|
|
|
+ obs_data_set_default_int(settings, "bf", 0);
|
|
|
+ obs_data_set_default_int(settings, "qp", 20);
|
|
|
+ obs_data_set_default_int(settings, "quality", 0);
|
|
|
+ obs_data_set_default_int(settings, "rendermode", 0);
|
|
|
+}
|
|
|
+
|
|
|
+static obs_properties_t *vaapi_properties(void *unused)
|
|
|
+{
|
|
|
+ UNUSED_PARAMETER(unused);
|
|
|
+
|
|
|
+ obs_properties_t *props = obs_properties_create();
|
|
|
+ obs_property_t * list;
|
|
|
+
|
|
|
+ list = obs_properties_add_list(props, "vaapi_device", "VAAPI Device",
|
|
|
+ OBS_COMBO_TYPE_LIST, OBS_COMBO_FORMAT_STRING);
|
|
|
+ char path[128] = "/dev/dri/renderD1";
|
|
|
+ for (int i = 28;; i++) {
|
|
|
+ sprintf(path, "/dev/dri/renderD1%d", i);
|
|
|
+ if (access(path, F_OK) == 0) {
|
|
|
+ char card[128] = "Card: ";
|
|
|
+ sprintf(card, "Card%d: %s", i - 28, path);
|
|
|
+ obs_property_list_add_string(list, card, path);
|
|
|
+ } else {
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ list = obs_properties_add_list(props, "vaapi_codec", "VAAPI Codec",
|
|
|
+ OBS_COMBO_TYPE_LIST, OBS_COMBO_FORMAT_INT);
|
|
|
+
|
|
|
+ obs_property_list_add_int(list, "H.264 (default)", AV_CODEC_ID_H264);
|
|
|
+
|
|
|
+ list = obs_properties_add_list(props, "level", "Level",
|
|
|
+ OBS_COMBO_TYPE_LIST, OBS_COMBO_FORMAT_INT);
|
|
|
+ obs_property_list_add_int(list, "480p30 (3.0)", 30);
|
|
|
+ obs_property_list_add_int(list, "720p30/480p60 (3.1)", 31);
|
|
|
+ obs_property_list_add_int(
|
|
|
+ list, "Compatibility mode (4.0 default)", 40);
|
|
|
+ obs_property_list_add_int(list, "720p60/1080p30 (4.1)", 41);
|
|
|
+ obs_property_list_add_int(list, "1080p60 (4.2)", 42);
|
|
|
+
|
|
|
+ obs_properties_add_int(props, "bitrate", obs_module_text("Bitrate"), 0,
|
|
|
+ 300000, 50);
|
|
|
+
|
|
|
+ obs_properties_add_int(props, "keyint_sec",
|
|
|
+ obs_module_text("Keyframe Interval (seconds)"), 0, 20,
|
|
|
+ 1);
|
|
|
+
|
|
|
+ return props;
|
|
|
+}
|
|
|
+
|
|
|
+static bool vaapi_extra_data(void *data, uint8_t **extra_data, size_t *size)
|
|
|
+{
|
|
|
+ struct vaapi_encoder *enc = data;
|
|
|
+
|
|
|
+ *extra_data = enc->header;
|
|
|
+ *size = enc->header_size;
|
|
|
+ return true;
|
|
|
+}
|
|
|
+
|
|
|
+static bool vaapi_sei_data(void *data, uint8_t **extra_data, size_t *size)
|
|
|
+{
|
|
|
+ struct vaapi_encoder *enc = data;
|
|
|
+
|
|
|
+ *extra_data = enc->sei;
|
|
|
+ *size = enc->sei_size;
|
|
|
+ return true;
|
|
|
+}
|
|
|
+
|
|
|
+struct obs_encoder_info vaapi_encoder_info = {
|
|
|
+ .id = "ffmpeg_vaapi",
|
|
|
+ .type = OBS_ENCODER_VIDEO,
|
|
|
+ .codec = "h264",
|
|
|
+ .get_name = vaapi_getname,
|
|
|
+ .create = vaapi_create,
|
|
|
+ .destroy = vaapi_destroy,
|
|
|
+ .encode = vaapi_encode,
|
|
|
+ .get_defaults = vaapi_defaults,
|
|
|
+ .get_properties = vaapi_properties,
|
|
|
+ .get_extra_data = vaapi_extra_data,
|
|
|
+ .get_sei_data = vaapi_sei_data,
|
|
|
+ .get_video_info = vaapi_video_info
|
|
|
+};
|
|
|
+
|
|
|
+#endif
|
Thomas Crider