1 #include "../../../stdafx.h"
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3 #include "video_transformer.h"
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5 #include "../../../frame/frame_format.h"
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6 #include "../../../../common/utility/memory.h"
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7 #include "../../../frame/gpu_frame.h"
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8 #include "../../../frame/gpu_frame.h"
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9 #include "../../../frame/frame_factory.h"
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11 #include <tbb/parallel_for.h>
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12 #include <tbb/atomic.h>
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13 #include <tbb/mutex.h>
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14 #include <tbb/concurrent_queue.h>
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15 #include <tbb/scalable_allocator.h>
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17 #if defined(_MSC_VER)
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18 #pragma warning (push)
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19 #pragma warning (disable : 4244)
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23 #define __STDC_CONSTANT_MACROS
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24 #define __STDC_LIMIT_MACROS
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25 #include <libswscale/swscale.h>
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27 #if defined(_MSC_VER)
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28 #pragma warning (pop)
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31 namespace caspar { namespace core { namespace ffmpeg{
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33 struct video_transformer::implementation : boost::noncopyable
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35 video_packet_ptr execute(const video_packet_ptr video_packet)
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37 assert(video_packet);
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38 size_t width = video_packet->codec_context->width;
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39 size_t height = video_packet->codec_context->height;
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40 auto pix_fmt = video_packet->codec_context->pix_fmt;
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45 sws_context_.reset(sws_getContext(width, height, pix_fmt, width, height,
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46 PIX_FMT_BGRA, SWS_BILINEAR, nullptr, nullptr, ¶m), sws_freeContext);
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49 video_packet->frame = factory_->create_frame(width, height);
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51 avcodec_get_frame_defaults(&av_frame);
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52 avpicture_fill(reinterpret_cast<AVPicture*>(&av_frame), video_packet->frame->data(), PIX_FMT_BGRA, width, height);
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54 sws_scale(sws_context_.get(), video_packet->decoded_frame->data, video_packet->decoded_frame->linesize, 0, height, av_frame.data, av_frame.linesize);
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56 if(video_packet->codec->id == CODEC_ID_DVVIDEO) // Move up one field
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57 video_packet->frame->translate(0.0f, 1.0/static_cast<double>(video_packet->format_desc.height));
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59 return video_packet;
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62 frame_factory_ptr factory_;
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63 std::shared_ptr<SwsContext> sws_context_;
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66 video_transformer::video_transformer() : impl_(new implementation()){}
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67 video_packet_ptr video_transformer::execute(const video_packet_ptr& video_packet){return impl_->execute(video_packet);}
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68 void video_transformer::initialize(const frame_factory_ptr& factory){impl_->factory_ = factory; }
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