X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=modules%2Fffmpeg%2Fproducer%2Fvideo%2Fvideo_decoder.cpp;h=6fa40588c480b1e20cacf80a8fa9e36a41bdb3ed;hb=27cedb2247123898fb5b5b8600f3050c0d513ac5;hp=589faa1befe1cbee7cc5df42aabbd9d1b8397a6a;hpb=a46c2bbab800d78ac60caa7da775acf1dcc65332;p=casparcg diff --git a/modules/ffmpeg/producer/video/video_decoder.cpp b/modules/ffmpeg/producer/video/video_decoder.cpp index 589faa1be..6fa40588c 100644 --- a/modules/ffmpeg/producer/video/video_decoder.cpp +++ b/modules/ffmpeg/producer/video/video_decoder.cpp @@ -20,15 +20,24 @@ #include "../../stdafx.h" #include "video_decoder.h" +#include "../util.h" +#include "../filter/filter.h" + +#include "../../ffmpeg_error.h" +#include "../../tbb_avcodec.h" #include #include #include -#include +#include #include +#include +#include + +#include -#include +#include #if defined(_MSC_VER) #pragma warning (push) @@ -38,168 +47,169 @@ extern "C" { #define __STDC_CONSTANT_MACROS #define __STDC_LIMIT_MACROS - #include #include + #include } #if defined(_MSC_VER) #pragma warning (pop) #endif namespace caspar { - -core::pixel_format::type get_pixel_format(PixelFormat pix_fmt) + +struct video_decoder::implementation : boost::noncopyable { - switch(pix_fmt) + const safe_ptr frame_factory_; + std::shared_ptr codec_context_; + int index_; + core::video_mode::type mode_; + + std::queue> packet_buffer_; + + std::unique_ptr filter_; + tbb::task_group filter_tasks_; + + double fps_; +public: + explicit implementation(const std::shared_ptr& context, const safe_ptr& frame_factory, const std::wstring& filter) + : frame_factory_(frame_factory) + , mode_(core::video_mode::invalid) + , filter_(filter.empty() ? nullptr : new caspar::filter(filter)) + , fps_(frame_factory_->get_video_format_desc().fps) { - case PIX_FMT_GRAY8: return core::pixel_format::gray; - case PIX_FMT_BGRA: return core::pixel_format::bgra; - case PIX_FMT_ARGB: return core::pixel_format::argb; - case PIX_FMT_RGBA: return core::pixel_format::rgba; - case PIX_FMT_ABGR: return core::pixel_format::abgr; - case PIX_FMT_YUV444P: return core::pixel_format::ycbcr; - case PIX_FMT_YUV422P: return core::pixel_format::ycbcr; - case PIX_FMT_YUV420P: return core::pixel_format::ycbcr; - case PIX_FMT_YUV411P: return core::pixel_format::ycbcr; - case PIX_FMT_YUV410P: return core::pixel_format::ycbcr; - case PIX_FMT_YUVA420P: return core::pixel_format::ycbcra; - default: return core::pixel_format::invalid; - } -} + AVCodec* dec; + index_ = av_find_best_stream(context.get(), AVMEDIA_TYPE_VIDEO, -1, -1, &dec, 0); -core::pixel_format_desc get_pixel_format_desc(PixelFormat pix_fmt, size_t width, size_t height) -{ - // Get linesizes - AVPicture dummy_pict; - avpicture_fill(&dummy_pict, nullptr, pix_fmt, width, height); + if(index_ < 0) + return; + + int errn = tbb_avcodec_open(context->streams[index_]->codec, dec); + if(errn < 0) + return; + + codec_context_.reset(context->streams[index_]->codec, tbb_avcodec_close); - core::pixel_format_desc desc; - desc.pix_fmt = get_pixel_format(pix_fmt); - - switch(desc.pix_fmt) + // Some files give an invalid time_base numerator, try to fix it. + if(codec_context_ && codec_context_->time_base.num == 1) + codec_context_->time_base.num = static_cast(std::pow(10.0, static_cast(std::log10(static_cast(codec_context_->time_base.den)))-1)); + + fps_ = static_cast(codec_context_->time_base.den) / static_cast(codec_context_->time_base.num); + if(double_rate(filter)) + fps_ *= 2; + } + + ~implementation() { - case core::pixel_format::gray: - { - desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0]/4, height, 1)); - return desc; - } - case core::pixel_format::bgra: - case core::pixel_format::argb: - case core::pixel_format::rgba: - case core::pixel_format::abgr: - { - desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0]/4, height, 4)); - return desc; - } - case core::pixel_format::ycbcr: - case core::pixel_format::ycbcra: - { - // Find chroma height - size_t size2 = dummy_pict.data[2] - dummy_pict.data[1]; - size_t h2 = size2/dummy_pict.linesize[1]; - - desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0], height, 1)); - desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[1], h2, 1)); - desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[2], h2, 1)); - - if(desc.pix_fmt == core::pixel_format::ycbcra) - desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[3], height, 1)); - return desc; - } - default: - desc.pix_fmt = core::pixel_format::invalid; - return desc; + filter_tasks_.cancel(); + filter_tasks_.wait(); } -} + + void push(const std::shared_ptr& packet) + { + if(!codec_context_) + return; -struct video_decoder::implementation : boost::noncopyable -{ - std::shared_ptr frame_factory_; - std::shared_ptr sws_context_; + if(packet && packet->stream_index != index_) + return; - AVCodecContext* codec_context_; + packet_buffer_.push(packet); + } - const int width_; - const int height_; - const PixelFormat pix_fmt_; - core::pixel_format_desc desc_; + std::vector> poll() + { + std::vector> result; -public: - explicit implementation(AVCodecContext* codec_context, const safe_ptr& frame_factory) - : frame_factory_(frame_factory) - , codec_context_(codec_context) - , width_(codec_context_->width) - , height_(codec_context_->height) - , pix_fmt_(codec_context_->pix_fmt) - , desc_(get_pixel_format_desc(pix_fmt_, width_, height_)) - { - if(desc_.pix_fmt == core::pixel_format::invalid) + if(!codec_context_) + result.push_back(make_safe(reinterpret_cast(this))); + else if(!packet_buffer_.empty()) { - CASPAR_LOG(warning) << "Hardware accelerated color transform not supported."; - - desc_ = get_pixel_format_desc(PIX_FMT_BGRA, width_, height_); - double param; - sws_context_.reset(sws_getContext(width_, height_, pix_fmt_, width_, height_, PIX_FMT_BGRA, SWS_BILINEAR, nullptr, nullptr, ¶m), sws_freeContext); - if(!sws_context_) - BOOST_THROW_EXCEPTION(operation_failed() << - msg_info("Could not create software scaling context.") << - boost::errinfo_api_function("sws_getContext")); + std::vector> av_frames; + + auto packet = std::move(packet_buffer_.front()); + packet_buffer_.pop(); + + if(!packet) // eof + { + if(codec_context_->codec->capabilities | CODEC_CAP_DELAY) + { + // FIXME: This might cause bad performance. + AVPacket pkt = {0}; + av_frames.push_back(decode_frame(pkt)); + } + + avcodec_flush_buffers(codec_context_.get()); + } + else + { + av_frames.push_back(decode_frame(*packet)); + } + + if(filter_) + { + auto av_frames2 = std::move(av_frames); + + filter_tasks_.wait(); + + boost::range::push_back(av_frames, filter_->poll()); + + filter_tasks_.run([=] + { + BOOST_FOREACH(auto& frame, av_frames2) + filter_->push(frame); + }); + } + + BOOST_FOREACH(auto& frame, av_frames) + result.push_back(make_write_frame(this, make_safe(frame), frame_factory_)); } + + return result; } - - std::shared_ptr execute(void* tag, const aligned_buffer& video_packet) - { - safe_ptr decoded_frame(avcodec_alloc_frame(), av_free); + + std::shared_ptr decode_frame(AVPacket& packet) + { + std::shared_ptr decoded_frame(avcodec_alloc_frame(), av_free); int frame_finished = 0; - const int errn = avcodec_decode_video(codec_context_, decoded_frame.get(), &frame_finished, video_packet.data(), video_packet.size()); + const int errn = avcodec_decode_video2(codec_context_.get(), decoded_frame.get(), &frame_finished, &packet); if(errn < 0) { BOOST_THROW_EXCEPTION( invalid_operation() << + msg_info(av_error_str(errn)) << boost::errinfo_api_function("avcodec_decode_video") << boost::errinfo_errno(AVUNERROR(errn))); } - - if(frame_finished == 0) - return nullptr; - auto write = frame_factory_->create_frame(tag, desc_); - if(sws_context_ == nullptr) - { - tbb::parallel_for(0, static_cast(desc_.planes.size()), 1, [&](int n) - { - auto plane = desc_.planes[n]; - auto result = write->image_data(n).begin(); - auto decoded = decoded_frame->data[n]; - auto decoded_linesize = decoded_frame->linesize[n]; - - // Copy line by line since ffmpeg sometimes pads each line. - tbb::parallel_for(0, static_cast(desc_.planes[n].height), 1, [&](int y) - { - fast_memcpy(result + y*plane.linesize, decoded + y*decoded_linesize, plane.linesize); - }); - }); - } - else - { - // Uses sws_scale when we don't support the provided color-space. - safe_ptr av_frame(avcodec_alloc_frame(), av_free); - avcodec_get_frame_defaults(av_frame.get()); - avpicture_fill(reinterpret_cast(av_frame.get()), write->image_data().begin(), PIX_FMT_BGRA, width_, height_); - - sws_scale(sws_context_.get(), decoded_frame->data, decoded_frame->linesize, 0, height_, av_frame->data, av_frame->linesize); - } - - // DVVIDEO is in lower field. Make it upper field if needed. - if(codec_context_->codec_id == CODEC_ID_DVVIDEO && frame_factory_->get_video_format_desc().mode == core::video_mode::upper) - write->get_image_transform().set_fill_translation(0.0f, 1.0/static_cast(height_)); - - return write; + if(frame_finished == 0) + decoded_frame.reset(); + + return decoded_frame; + } + + bool ready() const + { + return !codec_context_ || !packet_buffer_.empty(); + } + + core::video_mode::type mode() + { + if(!codec_context_) + return frame_factory_->get_video_format_desc().mode; + + return mode_; } -}; -video_decoder::video_decoder(AVCodecContext* codec_context, const safe_ptr& frame_factory) : impl_(new implementation(codec_context, frame_factory)){} -std::shared_ptr video_decoder::execute(void* tag, const aligned_buffer& video_packet){return impl_->execute(tag, video_packet);} + double fps() const + { + return fps_; + } +}; +video_decoder::video_decoder(const std::shared_ptr& context, const safe_ptr& frame_factory, const std::wstring& filter) : impl_(new implementation(context, frame_factory, filter)){} +void video_decoder::push(const std::shared_ptr& packet){impl_->push(packet);} +std::vector> video_decoder::poll(){return impl_->poll();} +bool video_decoder::ready() const{return impl_->ready();} +core::video_mode::type video_decoder::mode(){return impl_->mode();} +double video_decoder::fps() const{return impl_->fps();} } \ No newline at end of file