int DecoderHelper::SetVideoDecoderParam(int width, int height, int codec, int format)
{
if (_width != width || _height != height || _codec != codec)
{
releaseVideoDecoder();
}
if (NULL != _videoCodecContext)
{
return -1;
}
AVCodec *avcodec = avcodec_find_decoder((AVCodecID)codec);
if (NULL == avcodec)
{
return -1;
}
_videoCodecContext = avcodec_alloc_context3(avcodec);
_videoCodecContext->pix_fmt = AV_PIX_FMT_YUV420P;
_videoCodecContext->width = width;
_videoCodecContext->height = height;
int ret = avcodec_open2(_videoCodecContext, avcodec, NULL);
if (ret < 0)
{
goto $fail;
}
int numBytes = avpicture_get_size(AV_PIX_FMT_YUV420P, width, height);
_buffYUV420 = (uint8_t *)av_malloc(numBytes * sizeof(uint8_t));
_videoFrame420 = av_frame_alloc();
if (avpicture_fill((AVPicture *)_videoFrame420, _buffYUV420, AV_PIX_FMT_YUV420P,
_width, _height) < 0)
{
}
av_init_packet(&_videoAVPacket);
_width = width;
_height = height;
_codec = codec;
_outputFormat = format;
return 0;
$fail:
{
return -1;
}
}
OMXVideoDecoderBase::~OMXVideoDecoderBase() {
releaseVideoDecoder(mVideoDecoder);
if (this->ports) {
if (this->ports[INPORT_INDEX]) {
delete this->ports[INPORT_INDEX];
this->ports[INPORT_INDEX] = NULL;
}
if (this->ports[OUTPORT_INDEX]) {
delete this->ports[OUTPORT_INDEX];
this->ports[OUTPORT_INDEX] = NULL;
}
}
}
DecoderHelper::~DecoderHelper()
{
releaseVideoDecoder();
}
