void SimpleAudio::Init() {
#ifdef USE_FFMPEG
avcodec_register_all();
av_register_all();
InitFFmpeg();
frame_ = av_frame_alloc();
// Get Audio Codec ctx
int audioCodecId = GetAudioCodecID(audioType);
if (!audioCodecId) {
ERROR_LOG(ME, "This version of FFMPEG does not support Audio codec type: %08x. Update your submodule.", audioType);
return;
}
// Find decoder
codec_ = avcodec_find_decoder((AVCodecID)audioCodecId);
if (!codec_) {
// Eh, we shouldn't even have managed to compile. But meh.
ERROR_LOG(ME, "This version of FFMPEG does not support AV_CODEC_ctx for audio (%s). Update your submodule.", GetCodecName(audioType));
return;
}
// Allocate codec context
codecCtx_ = avcodec_alloc_context3(codec_);
if (!codecCtx_) {
ERROR_LOG(ME, "Failed to allocate a codec context");
return;
}
codecCtx_->channels = channels_;
codecCtx_->channel_layout = channels_ == 2 ? AV_CH_LAYOUT_STEREO : AV_CH_LAYOUT_MONO;
codecCtx_->sample_rate = sample_rate_;
codecOpen_ = false;
#endif // USE_FFMPEG
}
int main(int argc, char *argv[])
{
Context context;
Context *pContext = &context;
pContext->pCodecCtx = NULL;
pContext->pFormatCtx = NULL;
pContext->screen = NULL;
pContext->videoName = NULL;
if(argc < 2)
{
fprintf(stderr, "Please provide a movie file\n");
return 1;
}
pContext->videoName = argv[1];
if(InitFFmpeg(pContext) != 0)
{
fprintf(stderr, "Error initializing FFmpeg\n");
return 1;
}
if(InitSDL(pContext) != 0)
{
fprintf(stderr, "Error initializing SDL\n");
return 1;
}
if(Play(pContext) != 0)
{
fprintf(stderr, "Error playing video\n");
return 1;
}
return 0;
}
bool MediaEngine::openContext() {
#ifdef USE_FFMPEG
InitFFmpeg();
if (m_pFormatCtx || !m_pdata)
return false;
m_mpegheaderReadPos = 0;
m_decodingsize = 0;
u8* tempbuf = (u8*)av_malloc(m_bufSize);
m_pFormatCtx = avformat_alloc_context();
m_pIOContext = avio_alloc_context(tempbuf, m_bufSize, 0, (void*)this, _MpegReadbuffer, NULL, 0);
m_pFormatCtx->pb = m_pIOContext;
// Open video file
if (avformat_open_input((AVFormatContext**)&m_pFormatCtx, NULL, NULL, NULL) != 0)
return false;
if (avformat_find_stream_info(m_pFormatCtx, NULL) < 0) {
closeContext();
return false;
}
if (m_videoStream >= (int)m_pFormatCtx->nb_streams) {
WARN_LOG_REPORT(ME, "Bad video stream %d", m_videoStream);
m_videoStream = -1;
}
if (m_videoStream == -1) {
// Find the first video stream
for(int i = 0; i < (int)m_pFormatCtx->nb_streams; i++) {
if(m_pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
m_videoStream = i;
break;
}
}
if(m_videoStream == -1)
return false;
}
if (!setVideoStream(m_videoStream, true))
return false;
setVideoDim();
m_audioContext = AT3Create();
m_isVideoEnd = false;
m_noAudioData = false;
m_mpegheaderReadPos++;
av_seek_frame(m_pFormatCtx, m_videoStream, 0, 0);
#endif // USE_FFMPEG
return true;
}
SimpleAT3 *AT3Create() {
#ifdef USE_FFMPEG
avcodec_register_all();
av_register_all();
InitFFmpeg();
SimpleAT3 *at3 = new SimpleAT3();
if (!at3->IsOK()) {
delete at3;
return 0;
}
return at3;
#else
return 0;
#endif // USE_FFMPEG
}
SimpleAudio::SimpleAudio(u32 ctxPtr, int audioType)
: codec_(0), codecCtx_(0), swrCtx_(0), ctxPtr(ctxPtr), audioType(audioType), outSamples(0), wanted_resample_freq(44100){
#ifdef USE_FFMPEG
avcodec_register_all();
av_register_all();
InitFFmpeg();
frame_ = av_frame_alloc();
// Get Audio Codec ctx
if (!GetAudioCodecID(audioType)){
ERROR_LOG(ME, "This version of FFMPEG does not support Audio codec type: %08x. Update your submodule.", audioType);
return;
}
// Find decoder
codec_ = avcodec_find_decoder(audioCodecId);
if (!codec_) {
// Eh, we shouldn't even have managed to compile. But meh.
ERROR_LOG(ME, "This version of FFMPEG does not support AV_CODEC_ctx for audio (%s). Update your submodule.", GetCodecName(audioType));
return;
}
// Allocate codec context
codecCtx_ = avcodec_alloc_context3(codec_);
if (!codecCtx_) {
ERROR_LOG(ME, "Failed to allocate a codec context");
return;
}
codecCtx_->channels = 2;
codecCtx_->channel_layout = AV_CH_LAYOUT_STEREO;
codecCtx_->sample_rate = 44100;
// Open codec
AVDictionary *opts = 0;
if (avcodec_open2(codecCtx_, codec_, &opts) < 0) {
ERROR_LOG(ME, "Failed to open codec");
av_dict_free(&opts);
return;
}
av_dict_free(&opts);
#endif // USE_FFMPEG
}
bool MediaEngine::openContext() {
#ifdef USE_FFMPEG
InitFFmpeg();
if (m_pFormatCtx || !m_pdata)
return false;
m_mpegheaderReadPos = 0;
m_decodingsize = 0;
u8* tempbuf = (u8*)av_malloc(m_bufSize);
m_pFormatCtx = avformat_alloc_context();
m_pIOContext = avio_alloc_context(tempbuf, m_bufSize, 0, (void*)this, _MpegReadbuffer, NULL, 0);
m_pFormatCtx->pb = m_pIOContext;
// Open video file
if (avformat_open_input((AVFormatContext**)&m_pFormatCtx, NULL, NULL, NULL) != 0)
return false;
if (avformat_find_stream_info(m_pFormatCtx, NULL) < 0)
return false;
if (m_videoStream >= (int)m_pFormatCtx->nb_streams) {
WARN_LOG_REPORT(ME, "Bad video stream %d", m_videoStream);
m_videoStream = -1;
}
if (m_videoStream == -1) {
// Find the first video stream
for(int i = 0; i < (int)m_pFormatCtx->nb_streams; i++) {
if(m_pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
m_videoStream = i;
break;
}
}
if(m_videoStream == -1)
return false;
}
// Get a pointer to the codec context for the video stream
m_pCodecCtx = m_pFormatCtx->streams[m_videoStream]->codec;
// Find the decoder for the video stream
AVCodec *pCodec = avcodec_find_decoder(m_pCodecCtx->codec_id);
if(pCodec == NULL)
return false;
// Open codec
AVDictionary *optionsDict = 0;
if(avcodec_open2(m_pCodecCtx, pCodec, &optionsDict)<0)
return false; // Could not open codec
setVideoDim();
m_audioContext = AT3Create();
m_isVideoEnd = false;
m_noAudioData = false;
m_mpegheaderReadPos++;
av_seek_frame(m_pFormatCtx, m_videoStream, 0, 0);
#endif // USE_FFMPEG
return true;
}
