X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fffmpeg_decoder.cc;h=c3d32bc752306abd1beb81f6042a80a9bc9acc9c;hb=e67ce8ae4b9121bbcef2c1dcb61bdb5b9330ad78;hp=a5b36d04f442ee71f8ca76adbc718f7c08f4ab3e;hpb=dba7e1137282b52a1bd6ad1d56fe6371a8c97e30;p=dcpomatic.git diff --git a/src/lib/ffmpeg_decoder.cc b/src/lib/ffmpeg_decoder.cc index a5b36d04f..c3d32bc75 100644 --- a/src/lib/ffmpeg_decoder.cc +++ b/src/lib/ffmpeg_decoder.cc @@ -77,6 +77,7 @@ using namespace dcpomatic; FFmpegDecoder::FFmpegDecoder (shared_ptr film, shared_ptr c, bool fast) : FFmpeg (c) , Decoder (film) + , _filter_graphs(c->filters(), dcp::Fraction(lrint(_ffmpeg_content->video_frame_rate().get_value_or(24) * 1000), 1000)) { if (c->video && c->video->use()) { video = make_shared(this, c); @@ -105,11 +106,41 @@ FFmpegDecoder::FFmpegDecoder (shared_ptr film, shared_ptr(_flush_state)); + + switch (_flush_state) { + case FlushState::CODECS: + if (flush_codecs() == FlushResult::DONE) { + LOG_DEBUG_PLAYER_NC("Finished flushing codecs"); + _flush_state = FlushState::AUDIO_DECODER; + } + break; + case FlushState::AUDIO_DECODER: + if (audio) { + audio->flush(); + } + LOG_DEBUG_PLAYER_NC("Finished flushing audio decoder"); + _flush_state = FlushState::FILL; + break; + case FlushState::FILL: + if (flush_fill() == FlushResult::DONE) { + LOG_DEBUG_PLAYER_NC("Finished flushing fills"); + return FlushResult::DONE; + } + break; + } + + return FlushResult::AGAIN; +} + +/** @return true if we have finished flushing the codecs */ +FFmpegDecoder::FlushResult +FFmpegDecoder::flush_codecs() +{ bool did_something = false; if (video) { if (decode_and_process_video_packet(nullptr)) { @@ -131,48 +162,49 @@ FFmpegDecoder::flush () } } - if (did_something) { - /* We want to be called again */ - return false; - } + return did_something ? FlushResult::AGAIN : FlushResult::DONE; +} + +FFmpegDecoder::FlushResult +FFmpegDecoder::flush_fill() +{ /* Make sure all streams are the same length and round up to the next video frame */ + bool did_something = false; + auto const frc = film()->active_frame_rate_change(_ffmpeg_content->position()); ContentTime full_length (_ffmpeg_content->full_length(film()), frc); full_length = full_length.ceil (frc.source); - if (video) { + if (video && !video->ignore()) { double const vfr = _ffmpeg_content->video_frame_rate().get(); auto const f = full_length.frames_round (vfr); - auto v = video->position(film()).get_value_or(ContentTime()).frames_round(vfr) + 1; - while (v < f) { - video->emit (film(), make_shared(_black_image), v); - ++v; + auto const v = video->position(film()).get_value_or(ContentTime()).frames_round(vfr) + 1; + if (v < f) { + video->emit(film(), make_shared(_black_image), v); + did_something = true; } } - for (auto i: _ffmpeg_content->ffmpeg_audio_streams ()) { - auto a = audio->stream_position(film(), i); - /* Unfortunately if a is 0 that really means that we don't know the stream position since - there has been no data on it since the last seek. In this case we'll just do nothing - here. I'm not sure if that's the right idea. - */ - if (a > ContentTime()) { - while (a < full_length) { + if (audio && !audio->ignore()) { + for (auto i: _ffmpeg_content->ffmpeg_audio_streams ()) { + auto const a = audio->stream_position(film(), i); + /* Unfortunately if a is 0 that really means that we don't know the stream position since + there has been no data on it since the last seek. In this case we'll just do nothing + here. I'm not sure if that's the right idea. + */ + if (a > ContentTime() && a < full_length) { + LOG_DEBUG_PLAYER("Flush inserts silence at %1", to_string(a)); auto to_do = min (full_length - a, ContentTime::from_seconds (0.1)); auto silence = make_shared(i->channels(), to_do.frames_ceil (i->frame_rate())); silence->make_silent (); audio->emit (film(), i, silence, a, true); - a += to_do; + did_something = true; } } } - if (audio) { - audio->flush (); - } - - return true; + return did_something ? FlushResult::AGAIN : FlushResult::DONE; } @@ -189,6 +221,7 @@ FFmpegDecoder::pass () Hence it makes sense to continue here in that case. */ if (r < 0 && r != AVERROR_INVALIDDATA) { + LOG_DEBUG_PLAYER("FFpmegDecoder::pass flushes because av_read_frame returned %1", r); if (r != AVERROR_EOF) { /* Maybe we should fail here, but for now we'll just finish off instead */ char buf[256]; @@ -197,7 +230,7 @@ FFmpegDecoder::pass () } av_packet_free (&packet); - return flush (); + return flush() == FlushResult::DONE; } int const si = packet->stream_index; @@ -221,7 +254,7 @@ FFmpegDecoder::pass () */ static shared_ptr -deinterleave_audio(shared_ptr stream, AVFrame* frame) +deinterleave_audio(AVFrame* frame) { auto format = static_cast(frame->format); @@ -233,6 +266,10 @@ deinterleave_audio(shared_ptr stream, AVFrame* frame) auto audio = make_shared(channels, frames); auto data = audio->data(); + if (frames == 0) { + return audio; + } + switch (format) { case AV_SAMPLE_FMT_U8: { @@ -327,14 +364,9 @@ deinterleave_audio(shared_ptr stream, AVFrame* frame) case AV_SAMPLE_FMT_FLTP: { auto p = reinterpret_cast (frame->data); - DCPOMATIC_ASSERT(channels <= stream->channels()); - /* Sometimes there aren't as many channels in the frame as in the stream */ for (int i = 0; i < channels; ++i) { memcpy (data[i], p[i], frames * sizeof(float)); } - for (int i = channels; i < stream->channels(); ++i) { - audio->make_silent (i); - } } break; @@ -401,13 +433,10 @@ FFmpegDecoder::seek (ContentTime time, bool accurate) AVSEEK_FLAG_BACKWARD ); - { - /* Force re-creation of filter graphs to reset them and hence to make sure - they don't have any pre-seek frames knocking about. - */ - boost::mutex::scoped_lock lm (_filter_graphs_mutex); - _filter_graphs.clear (); - } + /* Force re-creation of filter graphs to reset them and hence to make sure + they don't have any pre-seek frames knocking about. + */ + _filter_graphs.clear(); if (video_codec_context ()) { avcodec_flush_buffers (video_codec_context()); @@ -451,7 +480,7 @@ void FFmpegDecoder::process_audio_frame (shared_ptr stream) { auto frame = audio_frame (stream); - auto data = deinterleave_audio(stream, frame); + auto data = deinterleave_audio(frame); auto const time_base = stream->stream(_format_context)->time_base; @@ -580,25 +609,7 @@ FFmpegDecoder::decode_and_process_video_packet (AVPacket* packet) void FFmpegDecoder::process_video_frame () { - boost::mutex::scoped_lock lm (_filter_graphs_mutex); - - shared_ptr graph; - - auto i = _filter_graphs.begin(); - while (i != _filter_graphs.end() && !(*i)->can_process(dcp::Size(_video_frame->width, _video_frame->height), (AVPixelFormat) _video_frame->format)) { - ++i; - } - - if (i == _filter_graphs.end ()) { - dcp::Fraction vfr (lrint(_ffmpeg_content->video_frame_rate().get() * 1000), 1000); - graph = make_shared(dcp::Size(_video_frame->width, _video_frame->height), (AVPixelFormat) _video_frame->format, vfr); - graph->setup (_ffmpeg_content->filters ()); - _filter_graphs.push_back (graph); - LOG_GENERAL (N_("New graph for %1x%2, pixel format %3"), _video_frame->width, _video_frame->height, _video_frame->format); - } else { - graph = *i; - } - + auto graph = _filter_graphs.get(dcp::Size(_video_frame->width, _video_frame->height), static_cast(_video_frame->format)); auto images = graph->process (_video_frame); for (auto const& i: images) {