hedgewars/avwrapper.c
author Stepan777 <stepik-777@mail.ru>
Mon, 06 Aug 2012 00:44:32 +0400
changeset 7507 3032a5739fe1
parent 7376 48b79b3ca592
child 7542 37ef1891efe2
permissions -rw-r--r--
improve video uploading
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <stdarg.h>
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#include "libavformat/avformat.h"
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#ifndef AVIO_FLAG_WRITE
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#define AVIO_FLAG_WRITE AVIO_WRONLY
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#endif
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static AVFormatContext* g_pContainer;
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static AVOutputFormat* g_pFormat;
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static AVStream* g_pAStream;
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static AVStream* g_pVStream;
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static AVFrame* g_pAFrame;
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static AVFrame* g_pVFrame;
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static AVCodec* g_pACodec;
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static AVCodec* g_pVCodec;
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static AVCodecContext* g_pAudio;
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static AVCodecContext* g_pVideo;
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static int g_Width, g_Height;
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static uint32_t g_Frequency, g_Channels;
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static int g_VQuality;
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static AVRational g_Framerate;
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static FILE* g_pSoundFile;
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static int16_t* g_pSamples;
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static int g_NumSamples;
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/*
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Initially I wrote code for latest ffmpeg, but on Linux (Ubuntu)
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only older version is available from repository. That's why you see here
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all of this #if LIBAVCODEC_VERSION_MAJOR < 54.
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Actually, it may be possible to remove code for newer version
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and use only code for older version.
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*/
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#if LIBAVCODEC_VERSION_MAJOR < 54
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#define OUTBUFFER_SIZE 200000
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static uint8_t g_OutBuffer[OUTBUFFER_SIZE];
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#endif
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// pointer to function from hwengine (uUtils.pas)
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static void (*AddFileLogRaw)(const char* pString);
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static void FatalError(const char* pFmt, ...)
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{
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    const char Buffer[1024];
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    va_list VaArgs;
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    va_start(VaArgs, pFmt);
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    vsnprintf(Buffer, 1024, pFmt, VaArgs);
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    va_end(VaArgs);
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    AddFileLogRaw("Error in av-wrapper: ");
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    AddFileLogRaw(Buffer);
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    AddFileLogRaw("\n");
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    exit(1);
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}
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// Function to be called from libav for logging.
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// Note: libav can call LogCallback from different threads
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// (there is mutex in AddFileLogRaw).
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static void LogCallback(void* p, int Level, const char* pFmt, va_list VaArgs)
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{
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    const char Buffer[1024];
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    vsnprintf(Buffer, 1024, pFmt, VaArgs);
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    AddFileLogRaw(Buffer);
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}
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static void Log(const char* pFmt, ...)
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{
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    const char Buffer[1024];
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    va_list VaArgs;
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    va_start(VaArgs, pFmt);
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    vsnprintf(Buffer, 1024, pFmt, VaArgs);
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    va_end(VaArgs);
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    AddFileLogRaw(Buffer);
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}
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static void AddAudioStream()
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{
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#if LIBAVFORMAT_VERSION_MAJOR >= 54
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    g_pAStream = avformat_new_stream(g_pContainer, g_pACodec);
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#else
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    g_pAStream = av_new_stream(g_pContainer, 1);
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#endif
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    if(!g_pAStream)
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    {
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        Log("Could not allocate audio stream\n");
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        return;
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    }
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    g_pAStream->id = 1;
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    g_pAudio = g_pAStream->codec;
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    avcodec_get_context_defaults3(g_pAudio, g_pACodec);
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    g_pAudio->codec_id = g_pACodec->id;
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    // put parameters
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    g_pAudio->sample_fmt = AV_SAMPLE_FMT_S16;
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    g_pAudio->sample_rate = g_Frequency;
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    g_pAudio->channels = g_Channels;
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    // set quality
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    g_pAudio->bit_rate = 160000;
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    // for codecs that support variable bitrate use it, it should be better
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    g_pAudio->flags |= CODEC_FLAG_QSCALE;
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    g_pAudio->global_quality = 1*FF_QP2LAMBDA;
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    // some formats want stream headers to be separate
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    if (g_pFormat->flags & AVFMT_GLOBALHEADER)
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        g_pAudio->flags |= CODEC_FLAG_GLOBAL_HEADER;
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    // open it
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#if LIBAVCODEC_VERSION_MAJOR >= 53
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    if (avcodec_open2(g_pAudio, g_pACodec, NULL) < 0)
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#else
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    if (avcodec_open(g_pAudio, g_pACodec) < 0)
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#endif
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    {
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        Log("Could not open audio codec %s\n", g_pACodec->long_name);
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        return;
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    }
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#if LIBAVCODEC_VERSION_MAJOR >= 54
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    if (g_pACodec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)
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#else
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    if (g_pAudio->frame_size == 0)
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#endif
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        g_NumSamples = 4096;
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    else
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        g_NumSamples = g_pAudio->frame_size;
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    g_pSamples = (int16_t*)av_malloc(g_NumSamples*g_Channels*sizeof(int16_t));
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    g_pAFrame = avcodec_alloc_frame();
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    if (!g_pAFrame)
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    {
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        Log("Could not allocate frame\n");
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        return;
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    }
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}
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// returns non-zero if there is more sound
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static int WriteAudioFrame()
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{
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    if (!g_pAStream)
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        return 0;
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    AVPacket Packet = { 0 };
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    av_init_packet(&Packet);
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    int NumSamples = fread(g_pSamples, 2*g_Channels, g_NumSamples, g_pSoundFile);
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#if LIBAVCODEC_VERSION_MAJOR >= 54
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    AVFrame* pFrame = NULL;
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    if (NumSamples > 0)
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    {
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        g_pAFrame->nb_samples = NumSamples;
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        avcodec_fill_audio_frame(g_pAFrame, g_Channels, AV_SAMPLE_FMT_S16,
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                                 (uint8_t*)g_pSamples, NumSamples*2*g_Channels, 1);
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        pFrame = g_pAFrame;
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    }
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    // when NumSamples == 0 we still need to call encode_audio2 to flush
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    int got_packet;
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    if (avcodec_encode_audio2(g_pAudio, &Packet, pFrame, &got_packet) != 0)
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        FatalError("avcodec_encode_audio2 failed");
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    if (!got_packet)
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        return 0;
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#else
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    if (NumSamples == 0)
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        return 0;
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    int BufferSize = OUTBUFFER_SIZE;
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    if (g_pAudio->frame_size == 0)
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        BufferSize = NumSamples*g_Channels*2;
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    Packet.size = avcodec_encode_audio(g_pAudio, g_OutBuffer, BufferSize, g_pSamples);
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    if (Packet.size == 0)
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        return 1;
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    if (g_pAudio->coded_frame && g_pAudio->coded_frame->pts != AV_NOPTS_VALUE)
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        Packet.pts = av_rescale_q(g_pAudio->coded_frame->pts, g_pAudio->time_base, g_pAStream->time_base);
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    Packet.flags |= AV_PKT_FLAG_KEY;
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    Packet.data = g_OutBuffer;
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#endif
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    // Write the compressed frame to the media file.
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    Packet.stream_index = g_pAStream->index;
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    if (av_interleaved_write_frame(g_pContainer, &Packet) != 0) 
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        FatalError("Error while writing audio frame");
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    return 1;
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}
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// add a video output stream
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static void AddVideoStream()
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{
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#if LIBAVFORMAT_VERSION_MAJOR >= 54
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    g_pVStream = avformat_new_stream(g_pContainer, g_pVCodec);
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#else
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    g_pVStream = av_new_stream(g_pContainer, 0);
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#endif
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    if (!g_pVStream)
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        FatalError("Could not allocate video stream");
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    g_pVideo = g_pVStream->codec;
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    avcodec_get_context_defaults3(g_pVideo, g_pVCodec);
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    g_pVideo->codec_id = g_pVCodec->id;
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    // put parameters
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    // resolution must be a multiple of two
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    g_pVideo->width  = g_Width  & ~1; // make even (dimensions should be even)
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    g_pVideo->height = g_Height & ~1; // make even
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    /* time base: this is the fundamental unit of time (in seconds) in terms
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       of which frame timestamps are represented. for fixed-fps content,
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       timebase should be 1/framerate and timestamp increments should be
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       identically 1. */
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    g_pVideo->time_base.den = g_Framerate.num;
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    g_pVideo->time_base.num = g_Framerate.den;
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    //g_pVideo->gop_size = 12; /* emit one intra frame every twelve frames at most */
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    g_pVideo->pix_fmt = PIX_FMT_YUV420P;
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    // set quality
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    if (g_VQuality > 100)
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        g_pVideo->bit_rate = g_VQuality;
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   230
    else
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   231
    {
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        g_pVideo->flags |= CODEC_FLAG_QSCALE;
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        g_pVideo->global_quality = g_VQuality*FF_QP2LAMBDA;
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    }
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    // some formats want stream headers to be separate
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    if (g_pFormat->flags & AVFMT_GLOBALHEADER)
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        g_pVideo->flags |= CODEC_FLAG_GLOBAL_HEADER;
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#if LIBAVCODEC_VERSION_MAJOR < 54
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    // for some versions of ffmpeg x264 options must be set explicitly
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    if (strcmp(g_pVCodec->name, "libx264") == 0)
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    {
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        g_pVideo->coder_type = FF_CODER_TYPE_AC;
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        g_pVideo->flags |= CODEC_FLAG_LOOP_FILTER;
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        g_pVideo->crf = 23;
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        g_pVideo->thread_count = 3;
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   248
        g_pVideo->me_cmp = FF_CMP_CHROMA;
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        g_pVideo->partitions = X264_PART_I8X8 | X264_PART_I4X4 | X264_PART_P8X8 | X264_PART_B8X8;
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        g_pVideo->me_method = ME_HEX;
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   251
        g_pVideo->me_subpel_quality = 7;
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        g_pVideo->me_range = 16;
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        g_pVideo->gop_size = 250;
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   254
        g_pVideo->keyint_min = 25;
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        g_pVideo->scenechange_threshold = 40;
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   256
        g_pVideo->i_quant_factor = 0.71;
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   257
        g_pVideo->b_frame_strategy = 1;
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   258
        g_pVideo->qcompress = 0.6;
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   259
        g_pVideo->qmin = 10;
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        g_pVideo->qmax = 51;
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   261
        g_pVideo->max_qdiff = 4;
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   262
        g_pVideo->max_b_frames = 3;
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   263
        g_pVideo->refs = 3;
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diff changeset
   264
        g_pVideo->directpred = 1;
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   265
        g_pVideo->trellis = 1;
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   266
        g_pVideo->flags2 = CODEC_FLAG2_BPYRAMID | CODEC_FLAG2_MIXED_REFS | CODEC_FLAG2_WPRED | CODEC_FLAG2_8X8DCT | CODEC_FLAG2_FASTPSKIP;
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   267
        g_pVideo->weighted_p_pred = 2;
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   268
    }
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   269
#endif
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   270
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    // open the codec
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   272
#if LIBAVCODEC_VERSION_MAJOR >= 53
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   273
    AVDictionary* pDict = NULL;
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   274
    if (strcmp(g_pVCodec->name, "libx264") == 0)
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        av_dict_set(&pDict, "preset", "medium", 0);
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   276
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    if (avcodec_open2(g_pVideo, g_pVCodec, &pDict) < 0)
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   278
#else
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   279
    if (avcodec_open(g_pVideo, g_pVCodec) < 0)
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   280
#endif
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        FatalError("Could not open video codec %s", g_pVCodec->long_name);
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   282
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   283
    g_pVFrame = avcodec_alloc_frame();
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   284
    if (!g_pVFrame)
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   285
        FatalError("Could not allocate frame");
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   286
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diff changeset
   287
    g_pVFrame->linesize[0] = g_Width;
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parents:
diff changeset
   288
    g_pVFrame->linesize[1] = g_Width/2;
53ffc8853008 here it is
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parents:
diff changeset
   289
    g_pVFrame->linesize[2] = g_Width/2;
53ffc8853008 here it is
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parents:
diff changeset
   290
    g_pVFrame->linesize[3] = 0;
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parents:
diff changeset
   291
}
53ffc8853008 here it is
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parents:
diff changeset
   292
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diff changeset
   293
static int WriteFrame(AVFrame* pFrame)
7180
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parents:
diff changeset
   294
{
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parents:
diff changeset
   295
    double AudioTime, VideoTime;
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parents:
diff changeset
   296
53ffc8853008 here it is
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parents:
diff changeset
   297
    // write interleaved audio frame
53ffc8853008 here it is
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parents:
diff changeset
   298
    if (g_pAStream)
53ffc8853008 here it is
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parents:
diff changeset
   299
    {
53ffc8853008 here it is
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parents:
diff changeset
   300
        VideoTime = (double)g_pVStream->pts.val*g_pVStream->time_base.num/g_pVStream->time_base.den;
53ffc8853008 here it is
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parents:
diff changeset
   301
        do
53ffc8853008 here it is
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parents:
diff changeset
   302
            AudioTime = (double)g_pAStream->pts.val*g_pAStream->time_base.num/g_pAStream->time_base.den;
53ffc8853008 here it is
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parents:
diff changeset
   303
        while (AudioTime < VideoTime && WriteAudioFrame());
53ffc8853008 here it is
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parents:
diff changeset
   304
    }
7198
5debd5fe526e 1. Add IFDEFs for video recording
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parents: 7180
diff changeset
   305
    
5debd5fe526e 1. Add IFDEFs for video recording
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parents: 7180
diff changeset
   306
    if (!g_pVStream)
5debd5fe526e 1. Add IFDEFs for video recording
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parents: 7180
diff changeset
   307
        return 0;
7180
53ffc8853008 here it is
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parents:
diff changeset
   308
53ffc8853008 here it is
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parents:
diff changeset
   309
    AVPacket Packet;
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parents:
diff changeset
   310
    av_init_packet(&Packet);
53ffc8853008 here it is
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parents:
diff changeset
   311
    Packet.data = NULL;
53ffc8853008 here it is
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parents:
diff changeset
   312
    Packet.size = 0;
53ffc8853008 here it is
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parents:
diff changeset
   313
53ffc8853008 here it is
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parents:
diff changeset
   314
    g_pVFrame->pts++;
53ffc8853008 here it is
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parents:
diff changeset
   315
    if (g_pFormat->flags & AVFMT_RAWPICTURE)
53ffc8853008 here it is
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parents:
diff changeset
   316
    {
53ffc8853008 here it is
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parents:
diff changeset
   317
        /* raw video case. The API will change slightly in the near
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parents:
diff changeset
   318
           future for that. */
53ffc8853008 here it is
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parents:
diff changeset
   319
        Packet.flags |= AV_PKT_FLAG_KEY;
53ffc8853008 here it is
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parents:
diff changeset
   320
        Packet.stream_index = g_pVStream->index;
53ffc8853008 here it is
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parents:
diff changeset
   321
        Packet.data = (uint8_t*)pFrame;
53ffc8853008 here it is
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parents:
diff changeset
   322
        Packet.size = sizeof(AVPicture);
53ffc8853008 here it is
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parents:
diff changeset
   323
53ffc8853008 here it is
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parents:
diff changeset
   324
        if (av_interleaved_write_frame(g_pContainer, &Packet) != 0)
53ffc8853008 here it is
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parents:
diff changeset
   325
            FatalError("Error while writing video frame");
53ffc8853008 here it is
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parents:
diff changeset
   326
        return 0;
53ffc8853008 here it is
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parents:
diff changeset
   327
    }
53ffc8853008 here it is
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parents:
diff changeset
   328
    else
53ffc8853008 here it is
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parents:
diff changeset
   329
    {
53ffc8853008 here it is
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parents:
diff changeset
   330
#if LIBAVCODEC_VERSION_MAJOR >= 54
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parents:
diff changeset
   331
        int got_packet;
53ffc8853008 here it is
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parents:
diff changeset
   332
        if (avcodec_encode_video2(g_pVideo, &Packet, pFrame, &got_packet) < 0)
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   333
            FatalError("avcodec_encode_video2 failed");
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   334
        if (!got_packet)
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   335
            return 0;
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   336
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   337
        if (Packet.pts != AV_NOPTS_VALUE)
53ffc8853008 here it is
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parents:
diff changeset
   338
            Packet.pts = av_rescale_q(Packet.pts, g_pVideo->time_base, g_pVStream->time_base);
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   339
        if (Packet.dts != AV_NOPTS_VALUE)
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   340
            Packet.dts = av_rescale_q(Packet.dts, g_pVideo->time_base, g_pVStream->time_base);
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   341
#else 
53ffc8853008 here it is
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parents:
diff changeset
   342
        Packet.size = avcodec_encode_video(g_pVideo, g_OutBuffer, OUTBUFFER_SIZE, pFrame);
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   343
        if (Packet.size < 0)
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   344
            FatalError("avcodec_encode_video failed");
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   345
        if (Packet.size == 0)
53ffc8853008 here it is
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parents:
diff changeset
   346
            return 0;
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   347
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   348
        if( g_pVideo->coded_frame->pts != AV_NOPTS_VALUE)
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   349
            Packet.pts = av_rescale_q(g_pVideo->coded_frame->pts, g_pVideo->time_base, g_pVStream->time_base);
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   350
        if( g_pVideo->coded_frame->key_frame )
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   351
            Packet.flags |= AV_PKT_FLAG_KEY;
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   352
        Packet.data = g_OutBuffer;
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   353
#endif
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   354
        // write the compressed frame in the media file
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   355
        Packet.stream_index = g_pVStream->index;
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   356
        if (av_interleaved_write_frame(g_pContainer, &Packet) != 0)
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   357
            FatalError("Error while writing video frame");
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   358
            
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   359
        return 1;
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   360
    }
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   361
}
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   362
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   363
void AVWrapper_WriteFrame(uint8_t* pY, uint8_t* pCb, uint8_t* pCr)
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   364
{
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   365
    g_pVFrame->data[0] = pY;
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   366
    g_pVFrame->data[1] = pCb;
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   367
    g_pVFrame->data[2] = pCr;
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   368
    WriteFrame(g_pVFrame);
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   369
}
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   370
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   371
void AVWrapper_Init(
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   372
         void (*pAddFileLogRaw)(const char*),
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   373
         const char* pFilename,
7280
fd707afbc3a2 pagevideos is now much better that before:
Stepan777 <stepik-777@mail.ru>
parents: 7235
diff changeset
   374
         const char* pDesc,
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   375
         const char* pSoundFile,
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   376
         const char* pFormatName,
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   377
         const char* pVCodecName,
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   378
         const char* pACodecName,
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   379
         int Width, int Height,
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   380
         int FramerateNum, int FramerateDen,
7376
48b79b3ca592 rework saving of camera positions so there is no need to know framerate during prerecording.
Stepan777 <stepik-777@mail.ru>
parents: 7359
diff changeset
   381
         int VQuality)
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   382
{    
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   383
    AddFileLogRaw = pAddFileLogRaw;
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   384
    av_log_set_callback( &LogCallback );
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   385
7282
c65992e2d794 correctly fix odd dimensions (it was incorrectly fixed in previous commit)
Stepan777 <stepik-777@mail.ru>
parents: 7280
diff changeset
   386
    g_Width  = Width;
c65992e2d794 correctly fix odd dimensions (it was incorrectly fixed in previous commit)
Stepan777 <stepik-777@mail.ru>
parents: 7280
diff changeset
   387
    g_Height = Height;
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   388
    g_Framerate.num = FramerateNum;
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   389
    g_Framerate.den = FramerateDen;
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   390
    g_VQuality = VQuality;
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   391
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   392
    // initialize libav and register all codecs and formats
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   393
    av_register_all();
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   394
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   395
    // find format
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   396
    g_pFormat = av_guess_format(pFormatName, NULL, NULL);
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   397
    if (!g_pFormat)
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   398
        FatalError("Format \"%s\" was not found", pFormatName);
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   399
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   400
    // allocate the output media context
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   401
    g_pContainer = avformat_alloc_context();
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   402
    if (!g_pContainer)
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   403
        FatalError("Could not allocate output context");
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   404
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   405
    g_pContainer->oformat = g_pFormat;
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   406
7280
fd707afbc3a2 pagevideos is now much better that before:
Stepan777 <stepik-777@mail.ru>
parents: 7235
diff changeset
   407
    // store description of file
fd707afbc3a2 pagevideos is now much better that before:
Stepan777 <stepik-777@mail.ru>
parents: 7235
diff changeset
   408
    av_dict_set(&g_pContainer->metadata, "comment", pDesc, 0);
fd707afbc3a2 pagevideos is now much better that before:
Stepan777 <stepik-777@mail.ru>
parents: 7235
diff changeset
   409
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   410
    // append extesnion to filename
7235
baa69bd025d9 1. Implement new page in frontend with options for video recording.
Stepan777 <stepik-777@mail.ru>
parents: 7198
diff changeset
   411
    char ext[16];
baa69bd025d9 1. Implement new page in frontend with options for video recording.
Stepan777 <stepik-777@mail.ru>
parents: 7198
diff changeset
   412
    strncpy(ext, g_pFormat->extensions, 16);
baa69bd025d9 1. Implement new page in frontend with options for video recording.
Stepan777 <stepik-777@mail.ru>
parents: 7198
diff changeset
   413
    ext[15] = 0;
baa69bd025d9 1. Implement new page in frontend with options for video recording.
Stepan777 <stepik-777@mail.ru>
parents: 7198
diff changeset
   414
    ext[strcspn(ext,",")] = 0;
baa69bd025d9 1. Implement new page in frontend with options for video recording.
Stepan777 <stepik-777@mail.ru>
parents: 7198
diff changeset
   415
    snprintf(g_pContainer->filename, sizeof(g_pContainer->filename), "%s.%s", pFilename, ext);
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   416
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   417
    // find codecs
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   418
    g_pVCodec = avcodec_find_encoder_by_name(pVCodecName);
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   419
    g_pACodec = avcodec_find_encoder_by_name(pACodecName);
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   420
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   421
    // add audio and video stream to container
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   422
    g_pVStream = NULL;
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   423
    g_pAStream = NULL;
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   424
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   425
    if (g_pVCodec)
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   426
        AddVideoStream();
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   427
    else
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   428
        Log("Video codec \"%s\" was not found; video will be ignored.\n", pVCodecName);
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   429
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   430
    if (g_pACodec)
7280
fd707afbc3a2 pagevideos is now much better that before:
Stepan777 <stepik-777@mail.ru>
parents: 7235
diff changeset
   431
    {
fd707afbc3a2 pagevideos is now much better that before:
Stepan777 <stepik-777@mail.ru>
parents: 7235
diff changeset
   432
        g_pSoundFile = fopen(pSoundFile, "rb");
fd707afbc3a2 pagevideos is now much better that before:
Stepan777 <stepik-777@mail.ru>
parents: 7235
diff changeset
   433
        if (g_pSoundFile)
fd707afbc3a2 pagevideos is now much better that before:
Stepan777 <stepik-777@mail.ru>
parents: 7235
diff changeset
   434
        {
fd707afbc3a2 pagevideos is now much better that before:
Stepan777 <stepik-777@mail.ru>
parents: 7235
diff changeset
   435
            fread(&g_Frequency, 4, 1, g_pSoundFile);
fd707afbc3a2 pagevideos is now much better that before:
Stepan777 <stepik-777@mail.ru>
parents: 7235
diff changeset
   436
            fread(&g_Channels, 4, 1, g_pSoundFile);
fd707afbc3a2 pagevideos is now much better that before:
Stepan777 <stepik-777@mail.ru>
parents: 7235
diff changeset
   437
            AddAudioStream();
fd707afbc3a2 pagevideos is now much better that before:
Stepan777 <stepik-777@mail.ru>
parents: 7235
diff changeset
   438
        }
fd707afbc3a2 pagevideos is now much better that before:
Stepan777 <stepik-777@mail.ru>
parents: 7235
diff changeset
   439
        else
7306
3cff5c769509 Here they come - thumbnails.
Stepan777 <stepik-777@mail.ru>
parents: 7282
diff changeset
   440
            Log("Could not open %s\n", pSoundFile);
7280
fd707afbc3a2 pagevideos is now much better that before:
Stepan777 <stepik-777@mail.ru>
parents: 7235
diff changeset
   441
    }
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   442
    else
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   443
        Log("Audio codec \"%s\" was not found; audio will be ignored.\n", pACodecName);
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   444
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   445
    if (!g_pAStream && !g_pVStream)
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   446
        FatalError("No video, no audio, aborting...");
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   447
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   448
    // write format info to log
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   449
    av_dump_format(g_pContainer, 0, g_pContainer->filename, 1);
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   450
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   451
    // open the output file, if needed
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   452
    if (!(g_pFormat->flags & AVFMT_NOFILE))
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   453
    {
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   454
        if (avio_open(&g_pContainer->pb, g_pContainer->filename, AVIO_FLAG_WRITE) < 0)
7306
3cff5c769509 Here they come - thumbnails.
Stepan777 <stepik-777@mail.ru>
parents: 7282
diff changeset
   455
            FatalError("Could not open output file (%s)", g_pContainer->filename);
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   456
    }
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   457
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   458
    // write the stream header, if any
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   459
    avformat_write_header(g_pContainer, NULL);
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   460
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   461
    g_pVFrame->pts = -1;
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   462
}
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   463
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   464
void AVWrapper_Close()
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   465
{
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   466
    // output buffered frames
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   467
    if (g_pVCodec->capabilities & CODEC_CAP_DELAY)
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   468
        while( WriteFrame(NULL) );
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   469
    // output any remaining audio
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   470
    while( WriteAudioFrame() );
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   471
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   472
    // write the trailer, if any.
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   473
    av_write_trailer(g_pContainer);
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   474
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   475
    // close the output file
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   476
    if (!(g_pFormat->flags & AVFMT_NOFILE))
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   477
        avio_close(g_pContainer->pb);
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   478
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   479
    // free everything
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   480
    if (g_pVStream)
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   481
    {
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   482
        avcodec_close(g_pVideo);
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   483
        av_free(g_pVideo);
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   484
        av_free(g_pVStream);
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   485
        av_free(g_pVFrame);
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   486
    }
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   487
    if (g_pAStream)
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   488
    {
7198
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   489
        avcodec_close(g_pAudio);
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   490
        av_free(g_pAudio);
5debd5fe526e 1. Add IFDEFs for video recording
Stepan777 <stepik-777@mail.ru>
parents: 7180
diff changeset
   491
        av_free(g_pAStream);
7180
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   492
        av_free(g_pAFrame);
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   493
        av_free(g_pSamples);
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   494
        fclose(g_pSoundFile);
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   495
    }
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   496
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   497
    av_free(g_pContainer);
53ffc8853008 here it is
Stepan777 <stepik-777@mail.ru>
parents:
diff changeset
   498
}