bool AVDecoder::open()
{
DPTR_D(AVDecoder);
// codec_ctx can't be null for none-ffmpeg based decoders because we may use it's properties in those decoders
if (!d.codec_ctx) {
qWarning("FFmpeg codec context not ready");
return false;
}
AVCodec *codec = 0;
if (!d.codec_name.isEmpty()) {
codec = avcodec_find_decoder_by_name(d.codec_name.toUtf8().constData());
if (!codec) {
const AVCodecDescriptor* cd = avcodec_descriptor_get_by_name(d.codec_name.toUtf8().constData());
if (cd) {
codec = avcodec_find_decoder(cd->id);
}
}
} else {
codec = avcodec_find_decoder(d.codec_ctx->codec_id);
}
if (!codec) { // TODO: can be null for none-ffmpeg based decoders
QString es(tr("No codec could be found for '%1'"));
if (d.codec_name.isEmpty()) {
es = es.arg(QLatin1String(avcodec_get_name(d.codec_ctx->codec_id)));
} else {
es = es.arg(d.codec_name);
}
qWarning() << es;
AVError::ErrorCode ec(AVError::CodecError);
switch (d.codec_ctx->coder_type) {
case AVMEDIA_TYPE_VIDEO:
ec = AVError::VideoCodecNotFound;
break;
case AVMEDIA_TYPE_AUDIO:
ec = AVError::AudioCodecNotFound;
break;
case AVMEDIA_TYPE_SUBTITLE:
ec = AVError::SubtitleCodecNotFound;
default:
break;
}
emit error(AVError(ec, es));
return false;
}
// hwa extra init can be here
if (!d.open()) {
d.close();
return false;
}
// TODO: skip for none-ffmpeg based decoders
d.applyOptionsForDict();
av_opt_set_int(d.codec_ctx, "refcounted_frames", d.enableFrameRef(), 0); // why dict may have no effect?
// TODO: only open for ff decoders
AV_ENSURE_OK(avcodec_open2(d.codec_ctx, codec, d.options.isEmpty() ? NULL : &d.dict), false);
d.is_open = true;
return true;
}
bool AVDecoder::open()
{
DPTR_D(AVDecoder);
if (!d.codec_ctx) {
qWarning("FFmpeg codec context not ready");
return false;
}
AVCodec *codec = 0;
if (!d.codec_name.isEmpty()) {
codec = avcodec_find_decoder_by_name(d.codec_name.toUtf8().constData());
} else {
codec = avcodec_find_decoder(d.codec_ctx->codec_id);
}
if (!codec) {
QString es(tr("No codec could be found for '%1'"));
if (d.codec_name.isEmpty()) {
es = es.arg(avcodec_get_name(d.codec_ctx->codec_id));
} else {
es = es.arg(d.codec_name);
}
qWarning() << es;
AVError::ErrorCode ec(AVError::CodecError);
switch (d.codec_ctx->coder_type) {
case AVMEDIA_TYPE_VIDEO:
ec = AVError::VideoCodecNotFound;
break;
case AVMEDIA_TYPE_AUDIO:
ec = AVError::AudioCodecNotFound;
break;
case AVMEDIA_TYPE_SUBTITLE:
ec = AVError::SubtitleCodecNotFound;
default:
break;
}
emit error(AVError(ec, es));
return false;
}
// hwa extra init can be here
if (!d.open()) {
d.close();
return false;
}
d.applyOptionsForDict();
int ret = avcodec_open2(d.codec_ctx, codec, d.options.isEmpty() ? NULL : &d.dict);
if (ret < 0) {
qWarning("open video codec failed: %s", av_err2str(ret));
return false;
}
d.is_open = true;
return true;
}
