forked from dolphin-emu/dolphin
265 lines
6.9 KiB
C++
265 lines
6.9 KiB
C++
// Copyright 2009 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#if defined(__FreeBSD__)
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#define __STDC_CONSTANT_MACROS 1
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#endif
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#include <string>
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extern "C" {
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#include <libavcodec/avcodec.h>
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#include <libavformat/avformat.h>
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#include <libavutil/mathematics.h>
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#include <libswscale/swscale.h>
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}
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#include "Common/CommonPaths.h"
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#include "Common/FileUtil.h"
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#include "Common/StringUtil.h"
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#include "Common/Logging/Log.h"
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#include "Core/ConfigManager.h"
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#include "Core/CoreTiming.h"
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#include "Core/HW/SystemTimers.h"
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#include "Core/HW/VideoInterface.h" //for TargetRefreshRate
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#include "VideoCommon/AVIDump.h"
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#include "VideoCommon/VideoConfig.h"
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#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(55, 28, 1)
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#define av_frame_alloc avcodec_alloc_frame
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#define av_frame_free avcodec_free_frame
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#endif
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static AVFormatContext* s_format_context = nullptr;
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static AVStream* s_stream = nullptr;
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static AVFrame* s_src_frame = nullptr;
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static AVFrame* s_scaled_frame = nullptr;
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static uint8_t* s_yuv_buffer = nullptr;
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static SwsContext* s_sws_context = nullptr;
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static int s_width;
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static int s_height;
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static int s_size;
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static u64 s_last_frame;
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static bool s_start_dumping = false;
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static u64 s_last_pts;
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static void InitAVCodec()
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{
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static bool first_run = true;
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if (first_run)
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{
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av_register_all();
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first_run = false;
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}
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}
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bool AVIDump::Start(int w, int h)
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{
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s_width = w;
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s_height = h;
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s_last_frame = CoreTiming::GetTicks();
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s_last_pts = 0;
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InitAVCodec();
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bool success = CreateFile();
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if (!success)
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CloseFile();
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return success;
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}
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bool AVIDump::CreateFile()
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{
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AVCodec* codec = nullptr;
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s_format_context = avformat_alloc_context();
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snprintf(s_format_context->filename, sizeof(s_format_context->filename), "%s",
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(File::GetUserPath(D_DUMPFRAMES_IDX) + "framedump0.avi").c_str());
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File::CreateFullPath(s_format_context->filename);
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// Ask to delete file
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if (File::Exists(s_format_context->filename))
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{
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if (SConfig::GetInstance().m_DumpFramesSilent ||
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AskYesNoT("Delete the existing file '%s'?", s_format_context->filename))
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{
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File::Delete(s_format_context->filename);
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}
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else
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{
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// Stop and cancel dumping the video
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return false;
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}
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}
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if (!(s_format_context->oformat = av_guess_format("avi", nullptr, nullptr)) ||
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!(s_stream = avformat_new_stream(s_format_context, codec)))
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{
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return false;
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}
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s_stream->codec->codec_id = g_Config.bUseFFV1 ? AV_CODEC_ID_FFV1
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: s_format_context->oformat->video_codec;
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if (!g_Config.bUseFFV1)
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s_stream->codec->codec_tag = MKTAG('X', 'V', 'I', 'D'); // Force XVID FourCC for better compatibility
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s_stream->codec->codec_type = AVMEDIA_TYPE_VIDEO;
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s_stream->codec->bit_rate = 400000;
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s_stream->codec->width = s_width;
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s_stream->codec->height = s_height;
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s_stream->codec->time_base.num = 1;
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s_stream->codec->time_base.den = VideoInterface::TargetRefreshRate;
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s_stream->codec->gop_size = 12;
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s_stream->codec->pix_fmt = g_Config.bUseFFV1 ? AV_PIX_FMT_BGRA : AV_PIX_FMT_YUV420P;
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if (!(codec = avcodec_find_encoder(s_stream->codec->codec_id)) ||
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(avcodec_open2(s_stream->codec, codec, nullptr) < 0))
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{
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return false;
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}
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s_src_frame = av_frame_alloc();
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s_scaled_frame = av_frame_alloc();
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s_size = avpicture_get_size(s_stream->codec->pix_fmt, s_width, s_height);
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s_yuv_buffer = new uint8_t[s_size];
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avpicture_fill((AVPicture*)s_scaled_frame, s_yuv_buffer, s_stream->codec->pix_fmt, s_width, s_height);
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NOTICE_LOG(VIDEO, "Opening file %s for dumping", s_format_context->filename);
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if (avio_open(&s_format_context->pb, s_format_context->filename, AVIO_FLAG_WRITE) < 0)
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{
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WARN_LOG(VIDEO, "Could not open %s", s_format_context->filename);
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return false;
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}
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avformat_write_header(s_format_context, nullptr);
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return true;
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}
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static void PreparePacket(AVPacket* pkt)
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{
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av_init_packet(pkt);
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pkt->data = nullptr;
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pkt->size = 0;
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}
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void AVIDump::AddFrame(const u8* data, int width, int height)
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{
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avpicture_fill((AVPicture*)s_src_frame, const_cast<u8*>(data), AV_PIX_FMT_BGR24, width, height);
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// Convert image from BGR24 to desired pixel format, and scale to initial
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// width and height
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if ((s_sws_context = sws_getCachedContext(s_sws_context,
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width, height, AV_PIX_FMT_BGR24,
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s_width, s_height, s_stream->codec->pix_fmt,
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SWS_BICUBIC, nullptr, nullptr, nullptr)))
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{
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sws_scale(s_sws_context, s_src_frame->data, s_src_frame->linesize, 0,
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height, s_scaled_frame->data, s_scaled_frame->linesize);
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}
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s_scaled_frame->format = s_stream->codec->pix_fmt;
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s_scaled_frame->width = s_width;
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s_scaled_frame->height = s_height;
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// Encode and write the image.
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AVPacket pkt;
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PreparePacket(&pkt);
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int got_packet = 0;
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int error = 0;
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u64 delta;
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s64 last_pts;
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if (!s_start_dumping && s_last_frame <= SystemTimers::GetTicksPerSecond())
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{
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delta = CoreTiming::GetTicks();
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last_pts = AV_NOPTS_VALUE;
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s_start_dumping = true;
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}
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else
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{
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delta = CoreTiming::GetTicks() - s_last_frame;
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last_pts = (s_last_pts * s_stream->codec->time_base.den) / SystemTimers::GetTicksPerSecond();
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}
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u64 pts_in_ticks = s_last_pts + delta;
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s_scaled_frame->pts = (pts_in_ticks * s_stream->codec->time_base.den) / SystemTimers::GetTicksPerSecond();
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if (s_scaled_frame->pts != last_pts)
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{
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s_last_frame = CoreTiming::GetTicks();
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s_last_pts = pts_in_ticks;
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error = avcodec_encode_video2(s_stream->codec, &pkt, s_scaled_frame, &got_packet);
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}
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while (!error && got_packet)
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{
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// Write the compressed frame in the media file.
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if (pkt.pts != (s64)AV_NOPTS_VALUE)
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{
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pkt.pts = av_rescale_q(pkt.pts,
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s_stream->codec->time_base, s_stream->time_base);
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}
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if (pkt.dts != (s64)AV_NOPTS_VALUE)
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{
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pkt.dts = av_rescale_q(pkt.dts,
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s_stream->codec->time_base, s_stream->time_base);
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}
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if (s_stream->codec->coded_frame->key_frame)
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pkt.flags |= AV_PKT_FLAG_KEY;
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pkt.stream_index = s_stream->index;
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av_interleaved_write_frame(s_format_context, &pkt);
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// Handle delayed frames.
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PreparePacket(&pkt);
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error = avcodec_encode_video2(s_stream->codec, &pkt, nullptr, &got_packet);
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}
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if (error)
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ERROR_LOG(VIDEO, "Error while encoding video: %d", error);
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}
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void AVIDump::Stop()
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{
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av_write_trailer(s_format_context);
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CloseFile();
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NOTICE_LOG(VIDEO, "Stopping frame dump");
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}
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void AVIDump::CloseFile()
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{
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if (s_stream)
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{
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if (s_stream->codec)
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avcodec_close(s_stream->codec);
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av_free(s_stream);
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s_stream = nullptr;
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}
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if (s_yuv_buffer)
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{
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delete[] s_yuv_buffer;
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s_yuv_buffer = nullptr;
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}
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av_frame_free(&s_src_frame);
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av_frame_free(&s_scaled_frame);
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if (s_format_context)
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{
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if (s_format_context->pb)
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avio_close(s_format_context->pb);
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av_free(s_format_context);
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s_format_context = nullptr;
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}
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if (s_sws_context)
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{
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sws_freeContext(s_sws_context);
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s_sws_context = nullptr;
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}
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}
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void AVIDump::DoState()
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{
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s_last_frame = CoreTiming::GetTicks();
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}
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