Ejemplos de SVCDecoder_init en C++ (Cpp)

Ejemplo n.º 1

Archivo: opensvc_dec.c Proyecto: Bevara/GPAC

static GF_Err OSVC_AttachStream(GF_BaseDecoder *ifcg, GF_ESD *esd)
{
	u32 i, count;
	s32 res;
	OPENSVCFRAME Picture;
	int Layer[4];
	OSVCDec *ctx = (OSVCDec*) ifcg->privateStack;

	/*todo: we should check base layer of this stream is indeed our base layer*/
	if (!ctx->ES_ID) {
		ctx->ES_ID = esd->ESID;
		ctx->width = ctx->height = ctx->out_size = 0;
		if (!esd->dependsOnESID) ctx->baseES_ID = esd->ESID;
	}

	if (esd->decoderConfig->decoderSpecificInfo && esd->decoderConfig->decoderSpecificInfo->data) {
		GF_AVCConfig *cfg = gf_odf_avc_cfg_read(esd->decoderConfig->decoderSpecificInfo->data, esd->decoderConfig->decoderSpecificInfo->dataLength);
		if (!cfg) return GF_NON_COMPLIANT_BITSTREAM;
		if (!esd->dependsOnESID) {
			ctx->nalu_size_length = cfg->nal_unit_size;
			if (SVCDecoder_init(&ctx->codec) == SVC_STATUS_ERROR) return GF_IO_ERR;
		}

		/*decode all NALUs*/
		count = gf_list_count(cfg->sequenceParameterSets);
		SetCommandLayer(Layer, 255, 0, &res, 0);//bufindex can be reset without pb
		for (i=0; i<count; i++) {
			u32 w=0, h=0, sid;
			s32 par_n=0, par_d=0;
			GF_AVCConfigSlot *slc = gf_list_get(cfg->sequenceParameterSets, i);

#ifndef GPAC_DISABLE_AV_PARSERS
			gf_avc_get_sps_info(slc->data, slc->size, &sid, &w, &h, &par_n, &par_d);
#endif
			/*by default use the base layer*/
			if (!i) {
				if ((ctx->width<w) || (ctx->height<h)) {
					ctx->width = w;
					ctx->height = h;
					if ( ((s32)par_n>0) && ((s32)par_d>0) )
						ctx->pixel_ar = (par_n<<16) || par_d;
				}
			}
			res = decodeNAL(ctx->codec, (unsigned char *) slc->data, slc->size, &Picture, Layer);
			if (res<0) {
				GF_LOG(GF_LOG_ERROR, GF_LOG_CODEC, ("[SVC Decoder] Error decoding SPS %d\n", res));
			}
			GF_LOG(GF_LOG_DEBUG, GF_LOG_CODEC, ("[SVC Decoder] Attach: SPS id=\"%d\" code=\"%d\" size=\"%d\"\n", slc->id, slc->data[0] & 0x1F, slc->size));
		}

		count = gf_list_count(cfg->pictureParameterSets);
		for (i=0; i<count; i++) {
			u32 sps_id, pps_id;
			GF_AVCConfigSlot *slc = gf_list_get(cfg->pictureParameterSets, i);
			gf_avc_get_pps_info(slc->data, slc->size, &pps_id, &sps_id);
			res = decodeNAL(ctx->codec, (unsigned char *) slc->data, slc->size, &Picture, Layer);
			if (res<0) {
				GF_LOG(GF_LOG_ERROR, GF_LOG_CODEC, ("[SVC Decoder] Error decoding PPS %d\n", res));
			}
			GF_LOG(GF_LOG_DEBUG, GF_LOG_CODEC, ("[SVC Decoder] Attach: PPS id=\"%d\" code=\"%d\" size=\"%d\" sps_id=\"%d\"\n", pps_id, slc->data[0] & 0x1F, slc->size, sps_id));
		}
		ctx->state_found = 1;
		gf_odf_avc_cfg_del(cfg);
	} else {
		if (ctx->nalu_size_length) {
			return GF_NOT_SUPPORTED;
		}
		ctx->nalu_size_length = 0;
		if (!esd->dependsOnESID) {
			if (SVCDecoder_init(&ctx->codec) == SVC_STATUS_ERROR) return GF_IO_ERR;
		}
		ctx->pixel_ar = (1<<16) || 1;
	}
	ctx->stride = ctx->width + 32;
	ctx->CurrentDqId = ctx->MaxDqId = 0;
	ctx->out_size = ctx->stride * ctx->height * 3 / 2;
	return GF_OK;
}

Ejemplo n.º 2

Archivo: opensvc_dec.c Proyecto: noelove/GPAC-old

static GF_Err OSVC_AttachStream(GF_BaseDecoder *ifcg, GF_ESD *esd)
{
	u32 i, count;
	s32 res;
	OPENSVCFRAME Picture;
	int Layer[4];
	OSVCDec *ctx = (OSVCDec*) ifcg->privateStack;

	/*not supported in this version*/
	if (esd->dependsOnESID) return GF_NOT_SUPPORTED;
	
	ctx->ES_ID = esd->ESID;
	ctx->width = ctx->height = ctx->out_size = 0;
	
	if (esd->decoderConfig->decoderSpecificInfo && esd->decoderConfig->decoderSpecificInfo->data) {
		GF_AVCConfig *cfg = gf_odf_avc_cfg_read(esd->decoderConfig->decoderSpecificInfo->data, esd->decoderConfig->decoderSpecificInfo->dataLength);
		if (!cfg) return GF_NON_COMPLIANT_BITSTREAM;
		ctx->nalu_size_length = cfg->nal_unit_size;
		if (SVCDecoder_init(&ctx->codec) == SVC_STATUS_ERROR) return GF_IO_ERR;

		/*decode all NALUs*/
		count = gf_list_count(cfg->sequenceParameterSets);
        SetCommandLayer(Layer, 255, 0, &i, 0);//bufindex can be reset without pb
		for (i=0; i<count; i++) {
			u32 w, h, par_n, par_d;
			GF_AVCConfigSlot *slc = gf_list_get(cfg->sequenceParameterSets, i);

			gf_avc_get_sps_info(slc->data, slc->size, &slc->id, &w, &h, &par_n, &par_d);
			/*by default use the base layer*/
			if (!i) {
				if ((ctx->width<w) || (ctx->height<h)) {
					ctx->width = w;
					ctx->height = h;
					if ( ((s32)par_n>0) && ((s32)par_d>0) )
						ctx->pixel_ar = (par_n<<16) || par_d;
				}
			}
			res = decodeNAL(ctx->codec, slc->data, slc->size, &Picture, Layer);
			if (res<0) {
				GF_LOG(GF_LOG_ERROR, GF_LOG_CODEC, ("[SVC Decoder] Error decoding SPS %d\n", res));
			}
		}

		count = gf_list_count(cfg->pictureParameterSets);
		for (i=0; i<count; i++) {
			GF_AVCConfigSlot *slc = gf_list_get(cfg->pictureParameterSets, i);
			res = decodeNAL(ctx->codec, slc->data, slc->size, &Picture, Layer);
			if (res<0) {
				GF_LOG(GF_LOG_ERROR, GF_LOG_CODEC, ("[SVC Decoder] Error decoding PPS %d\n", res));
			}
		}

		gf_odf_avc_cfg_del(cfg);
	} else {
		ctx->nalu_size_length = 0;
		if (SVCDecoder_init(&ctx->codec) == SVC_STATUS_ERROR) return GF_IO_ERR;
	}
	ctx->stride = ctx->width + 32;
	ctx->layer = 0;
	ctx->CurrDqId = ctx->layer;
	ctx->out_size = ctx->stride * ctx->height * 3 / 2;
	return GF_OK;
}