memset(video_frame.data + frame_width * frame_height, 128, frame_width * frame_height); // Valid for both NV12 and planar.
}
- frame_callback(-1, AVRational{1, TIMEBASE}, -1, AVRational{1, TIMEBASE}, timecode++,
- video_frame, /*video_offset=*/0, video_format,
- FrameAllocator::Frame(), /*audio_offset=*/0, AudioFormat());
+ if (frame_callback != nullptr) {
+ frame_callback(-1, AVRational{1, TIMEBASE}, -1, AVRational{1, TIMEBASE}, timecode++,
+ video_frame, /*video_offset=*/0, video_format,
+ FrameAllocator::Frame(), /*audio_offset=*/0, AudioFormat());
+ }
last_frame_was_connected = false;
}
}
}
+AVPixelFormat get_vaapi_hw_format(AVCodecContext *ctx, const AVPixelFormat *fmt)
+{
+ for (const AVPixelFormat *fmt_ptr = fmt; *fmt_ptr != -1; ++fmt_ptr) {
+ for (int i = 0;; ++i) { // Termination condition inside loop.
+ const AVCodecHWConfig *config = avcodec_get_hw_config(ctx->codec, i);
+ if (config == nullptr) { // End of list.
+ fprintf(stderr, "Decoder %s does not support device.\n", ctx->codec->name);
+ break;
+ }
+ if (config->methods & AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX &&
+ config->device_type == AV_HWDEVICE_TYPE_VAAPI &&
+ config->pix_fmt == *fmt_ptr) {
+ return config->pix_fmt;
+ }
+ }
+ }
+
+ // We found no VA-API formats, so take the best software format.
+ return fmt[0];
+}
+
bool FFmpegCapture::play_video(const string &pathname)
{
// Note: Call before open, not after; otherwise, there's a race.
} else {
#ifdef HAVE_SRT
// SRT socket, already opened.
- AVInputFormat *mpegts_fmt = av_find_input_format("mpegts");
+ const AVInputFormat *mpegts_fmt = av_find_input_format("mpegts");
format_ctx = avformat_open_input_unique(&FFmpegCapture::read_srt_thunk, this,
mpegts_fmt, /*options=*/nullptr,
AVIOInterruptCB{ &FFmpegCapture::interrupt_cb_thunk, this });
// Open video decoder.
const AVCodecParameters *video_codecpar = format_ctx->streams[video_stream_index]->codecpar;
- AVCodec *video_codec = avcodec_find_decoder(video_codecpar->codec_id);
+ const AVCodec *video_codec = avcodec_find_decoder(video_codecpar->codec_id);
+
video_timebase = format_ctx->streams[video_stream_index]->time_base;
AVCodecContextWithDeleter video_codec_ctx = avcodec_alloc_context3_unique(nullptr);
if (avcodec_parameters_to_context(video_codec_ctx.get(), video_codecpar) < 0) {
fprintf(stderr, "%s: Cannot find video decoder\n", pathname.c_str());
return false;
}
+
+ // Seemingly, it's not too easy to make something that just initializes
+ // “whatever goes”, so we don't get VDPAU or CUDA here without enumerating
+ // through several different types. VA-API will do for now.
+ AVBufferRef *hw_device_ctx = nullptr;
+ if (av_hwdevice_ctx_create(&hw_device_ctx, AV_HWDEVICE_TYPE_VAAPI, nullptr, nullptr, 0) < 0) {
+ fprintf(stderr, "Failed to initialize VA-API for FFmpeg acceleration. Decoding video in software.\n");
+ } else {
+ video_codec_ctx->hw_device_ctx = av_buffer_ref(hw_device_ctx);
+ video_codec_ctx->get_format = get_vaapi_hw_format;
+ }
+
if (avcodec_open2(video_codec_ctx.get(), video_codec, nullptr) < 0) {
fprintf(stderr, "%s: Cannot open video decoder\n", pathname.c_str());
return false;
fprintf(stderr, "%s: Cannot fill audio codec parameters\n", pathname.c_str());
return false;
}
- AVCodec *audio_codec = avcodec_find_decoder(audio_codecpar->codec_id);
+ const AVCodec *audio_codec = avcodec_find_decoder(audio_codecpar->codec_id);
if (audio_codec == nullptr) {
fprintf(stderr, "%s: Cannot find audio decoder\n", pathname.c_str());
return false;
timecode += MAX_FPS * 2 + 1;
}
last_neutral_color = get_neutral_color(frame->metadata);
- frame_callback(frame->pts, video_timebase, audio_pts, audio_timebase, timecode++,
- video_frame.get_and_release(), 0, video_format,
- audio_frame.get_and_release(), 0, audio_format);
+ if (frame_callback != nullptr) {
+ frame_callback(frame->pts, video_timebase, audio_pts, audio_timebase, timecode++,
+ video_frame.get_and_release(), 0, video_format,
+ audio_frame.get_and_release(), 0, audio_format);
+ }
first_frame = false;
last_frame = steady_clock::now();
last_frame_was_connected = true;
if (pkt.stream_index == audio_stream_index && audio_callback != nullptr) {
audio_callback(&pkt, format_ctx->streams[audio_stream_index]->time_base);
}
- if (pkt.stream_index == video_stream_index) {
+ if (pkt.stream_index == video_stream_index && video_callback != nullptr) {
+ video_callback(&pkt, format_ctx->streams[video_stream_index]->time_base);
+ }
+ if (pkt.stream_index == video_stream_index && global_flags.transcode_video) {
if (avcodec_send_packet(video_codec_ctx, &pkt) < 0) {
fprintf(stderr, "%s: Cannot send packet to video codec.\n", pathname.c_str());
*error = true;
return AVFrameWithDeleter(nullptr);
}
- } else if (pkt.stream_index == audio_stream_index) {
+ } else if (pkt.stream_index == audio_stream_index && global_flags.transcode_audio) {
has_audio = true;
if (avcodec_send_packet(audio_codec_ctx, &pkt) < 0) {
fprintf(stderr, "%s: Cannot send packet to audio codec.\n", pathname.c_str());
// Decode video, if we have a frame.
int err = avcodec_receive_frame(video_codec_ctx, video_avframe.get());
if (err == 0) {
+ if (video_avframe->format == AV_PIX_FMT_VAAPI) {
+ // Get the frame down to the CPU. (TODO: See if we can keep it
+ // on the GPU all the way, since it will be going up again later.
+ // However, this only works if the OpenGL GPU is the same one.)
+ AVFrameWithDeleter sw_frame = av_frame_alloc_unique();
+ int err = av_hwframe_transfer_data(sw_frame.get(), video_avframe.get(), 0);
+ if (err != 0) {
+ fprintf(stderr, "%s: Cannot transfer hardware video frame to software.\n", pathname.c_str());
+ *error = true;
+ return AVFrameWithDeleter(nullptr);
+ }
+ sw_frame->pts = video_avframe->pts;
+ sw_frame->pkt_duration = video_avframe->pkt_duration;
+ video_avframe = move(sw_frame);
+ }
frame_finished = true;
break;
} else if (err != AVERROR(EAGAIN)) {
if (height == 0) {
return frame->height;
} else {
- return width;
+ return height;
}
}
projects / nageru / blobdiff