diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/main.cpp | 58 |
1 files changed, 46 insertions, 12 deletions
diff --git a/src/main.cpp b/src/main.cpp index 9e8e685..4a470b4 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -101,6 +101,11 @@ enum class VideoQuality { ULTRA }; +enum class VideoCodec { + H264, + H265 +}; + static double clock_get_monotonic_seconds() { struct timespec ts; ts.tv_sec = 0; @@ -592,15 +597,15 @@ static AVCodecContext* create_audio_codec_context(AVFormatContext *av_format_con static AVCodecContext *create_video_codec_context(AVFormatContext *av_format_context, VideoQuality video_quality, int record_width, int record_height, - int fps, bool use_hevc) { - const AVCodec *codec = avcodec_find_encoder_by_name(use_hevc ? "hevc_nvenc" : "h264_nvenc"); + int fps, VideoCodec video_codec) { + const AVCodec *codec = avcodec_find_encoder_by_name(video_codec == VideoCodec::H265 ? "hevc_nvenc" : "h264_nvenc"); if (!codec) { - codec = avcodec_find_encoder_by_name(use_hevc ? "nvenc_hevc" : "nvenc_h264"); + codec = avcodec_find_encoder_by_name(video_codec == VideoCodec::H265 ? "nvenc_hevc" : "nvenc_h264"); } if (!codec) { fprintf( stderr, - "Error: Could not find %s encoder\n", use_hevc ? "hevc" : "h264"); + "Error: Could not find %s encoder\n", video_codec == VideoCodec::H265 ? "hevc" : "h264"); exit(1); } @@ -629,7 +634,7 @@ static AVCodecContext *create_video_codec_context(AVFormatContext *av_format_con codec_context->max_b_frames = 0; codec_context->pix_fmt = AV_PIX_FMT_CUDA; codec_context->color_range = AVCOL_RANGE_JPEG; - if(use_hevc) + if(video_codec == VideoCodec::H265) codec_context->codec_tag = MKTAG('h', 'v', 'c', '1'); switch(video_quality) { case VideoQuality::VERY_HIGH: @@ -839,10 +844,11 @@ static void usage() { fprintf(stderr, " -c Container format for output file, for example mp4, or flv.\n"); fprintf(stderr, " -f Framerate to record at.\n"); fprintf(stderr, " -a Audio device to record from (pulse audio device). Can be specified multiple times. Each time this is specified a new audio track is added for the specified audio device. A name can be given to the audio input device by prefixing the audio input with <name>/, for example \"dummy/alsa_output.pci-0000_00_1b.0.analog-stereo.monitor\". Optional, no audio track is added by default.\n"); - fprintf(stderr, " -q Video quality. Should either be 'very_high' or 'ultra'. 'very_high' is the recommended, especially when live streaming or when you have a slower harddrive. Optional, set to 'very_high' be default.\n"); + fprintf(stderr, " -q Video quality. Should be either 'very_high' or 'ultra'. 'very_high' is the recommended, especially when live streaming or when you have a slower harddrive. Optional, set to 'very_high' be default.\n"); fprintf(stderr, " -r Replay buffer size in seconds. If this is set, then only the last seconds as set by this option will be stored" " and the video will only be saved when the gpu-screen-recorder is closed. This feature is similar to Nvidia's instant replay feature." " This option has be between 5 and 1200. Note that the replay buffer size will not always be precise, because of keyframes. Optional, disabled by default.\n"); + fprintf(stderr, " -k Codec to use. Should be either 'h264' or 'h265'. Defaults to 'h264' unless recording at a higher resolution than 3840x2160. Forcefully set to 'h264' if -c is 'flv.\n"); fprintf(stderr, " -o The output file path. If omitted then the encoded data is sent to stdout. Required in replay mode (when using -r). In replay mode this has to be an existing directory instead of a file.\n"); fprintf(stderr, "NOTES:\n"); fprintf(stderr, " Send signal SIGINT (Ctrl+C) to gpu-screen-recorder to stop and save the recording (when not using replay mode).\n"); @@ -1076,7 +1082,8 @@ int main(int argc, char **argv) { { "-a", Arg { {}, true, true } }, { "-q", Arg { {}, true, false } }, { "-o", Arg { {}, true, false } }, - { "-r", Arg { {}, true, false } } + { "-r", Arg { {}, true, false } }, + { "-k", Arg { {}, true, false } } }; for(int i = 1; i < argc - 1; i += 2) { @@ -1101,6 +1108,19 @@ int main(int argc, char **argv) { } } + VideoCodec video_codec; + const char *codec_to_use = args["-k"].value(); + if(codec_to_use) { + if(strcmp(codec_to_use, "h264") == 0) { + video_codec = VideoCodec::H264; + } else if(strcmp(codec_to_use, "h265") == 0) { + video_codec = VideoCodec::H265; + } else { + fprintf(stderr, "Error: -k should either be either 'h264' or 'h265', got: '%s'\n", codec_to_use); + usage(); + } + } + const Arg &audio_input_arg = args["-a"]; const std::vector<AudioInput> audio_inputs = get_pulseaudio_inputs(); std::vector<AudioInput> requested_audio_inputs; @@ -1349,6 +1369,21 @@ int main(int argc, char **argv) { window_pixmap.texture_height = window_height; } + if(!codec_to_use) { + // h265 generally allows recording at a higher resolution than h264 on nvidia cards. On a gtx 1080 4k is the max resolution for h264 but for h265 it's 8k. + // Another important info is that when recording at a higher fps than.. 60? h265 has very bad performance. For example when recording at 144 fps the fps drops to 1 + // while with h264 the fps doesn't drop. + if(window_width > 3840 || window_height > 2160) { + fprintf(stderr, "Info: using h265 encoder because a codec was not specified and resolution width is more than 3840 or height is more than 2160\n"); + codec_to_use = "h265"; + video_codec = VideoCodec::H265; + } else { + fprintf(stderr, "Info: using h264 encoder because a codec was not specified\n"); + codec_to_use = "h264"; + video_codec = VideoCodec::H264; + } + } + // Video start AVFormatContext *av_format_context; // The output format is automatically guessed by the file extension @@ -1365,16 +1400,15 @@ int main(int argc, char **argv) { const AVOutputFormat *output_format = av_format_context->oformat; //bool use_hevc = strcmp(window_str, "screen") == 0 || strcmp(window_str, "screen-direct") == 0; - bool use_hevc = true; - if(use_hevc && strcmp(container_format, "flv") == 0) { - use_hevc = false; - fprintf(stderr, "Warning: hevc is not compatible with flv, falling back to h264 instead.\n"); + if(video_codec != VideoCodec::H264 && strcmp(container_format, "flv") == 0) { + video_codec = VideoCodec::H264; + fprintf(stderr, "Warning: h265 is not compatible with flv, falling back to h264 instead.\n"); } AVStream *video_stream = nullptr; std::vector<AudioTrack> audio_tracks; - AVCodecContext *video_codec_context = create_video_codec_context(av_format_context, quality, record_width, record_height, fps, use_hevc); + AVCodecContext *video_codec_context = create_video_codec_context(av_format_context, quality, record_width, record_height, fps, video_codec); if(replay_buffer_size_secs == -1) video_stream = create_stream(av_format_context, video_codec_context); |