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cineform.cpp
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419 lines (382 loc) · 11.8 KB
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#include "cineform.h"
#include <stdint.h>
#include "cineform/common/CFHDDecoder.h"
extern "C" {
#include <libavformat/avformat.h>
#include <libavutil/imgutils.h>
}
// this enables cfhd to operate within ffmpeg
typedef struct AVCodecTag {
enum AVCodecID id;
unsigned int tag;
} AVCodecTag;
//----------------------------------------------------------------------------------------------
struct DecoderObj{
void* buf;
CFHD_DecoderRef dec;
CFHD_MetadataRef meta;
CFHD_EncodedFormat encoded_format;
COLOR_FORMAT input_format;
int input_depth;
CFHD_PixelFormat fmt;
int samples;
bool use_am;
};
av_cold int cfhd_init_decoder(AVCodecContext* avctx)
{
DecoderObj* obj = (DecoderObj*)avctx->priv_data;
obj->samples = 0;
obj->dec = 0;
obj->meta = 0;
obj->encoded_format = CFHD_ENCODED_FORMAT_UNKNOWN;
obj->input_format = COLOR_FORMAT_UNKNOWN;
obj->input_depth = 0;
obj->fmt = CFHD_PIXEL_FORMAT_UNKNOWN;
avctx->pix_fmt = AV_PIX_FMT_RGBA64; // hack for max size
CFHD_OpenDecoder(&obj->dec,0);
CFHD_OpenMetadata(&obj->meta);
obj->use_am = true;
return 0;
}
av_cold int cfhd_close_decoder(AVCodecContext* avctx)
{
DecoderObj* obj = (DecoderObj*)avctx->priv_data;
if(obj->dec) CFHD_CloseDecoder(obj->dec);
if(obj->meta) CFHD_CloseMetadata(obj->meta);
return 0;
}
void cfhd_set_buffer(AVCodecContext* avctx, void* buf)
{
DecoderObj* obj = (DecoderObj*)avctx->priv_data;
obj->buf = buf;
}
void cfhd_set_use_am(AVCodecContext* avctx, bool v)
{
DecoderObj* obj = (DecoderObj*)avctx->priv_data;
obj->use_am = v;
}
void cfhd_set_encoded_format(AVCodecContext* avctx)
{
DecoderObj* obj = (DecoderObj*)avctx->priv_data;
CFHD_PixelFormat fmt;
switch(obj->encoded_format){
case CFHD_ENCODED_FORMAT_UNKNOWN:
return;
case CFHD_ENCODED_FORMAT_YUV_422:
fmt = CFHD_PIXEL_FORMAT_YUY2;
avctx->pix_fmt = AV_PIX_FMT_YUYV422;
break;
case CFHD_ENCODED_FORMAT_RGB_444:
if(obj->input_depth==8){
//fmt = CFHD_PIXEL_FORMAT_RG24;
//avctx->pix_fmt = AV_PIX_FMT_BGR24;
fmt = CFHD_PIXEL_FORMAT_BGRA;
avctx->pix_fmt = AV_PIX_FMT_BGRA;
} else {
fmt = CFHD_PIXEL_FORMAT_B64A;
avctx->pix_fmt = AV_PIX_FMT_BGRA64;
}
break;
case CFHD_ENCODED_FORMAT_RGBA_4444:
if(obj->input_depth==8){
fmt = CFHD_PIXEL_FORMAT_BGRA;
avctx->pix_fmt = AV_PIX_FMT_BGRA;
} else {
fmt = CFHD_PIXEL_FORMAT_B64A;
avctx->pix_fmt = AV_PIX_FMT_BGRA64;
}
break;
case CFHD_ENCODED_FORMAT_BAYER:
fmt = CFHD_PIXEL_FORMAT_B64A;
avctx->pix_fmt = AV_PIX_FMT_BGRA64;
break;
default:
//fmt = CFHD_PIXEL_FORMAT_RG24;
//avctx->pix_fmt = AV_PIX_FMT_BGR24;
fmt = CFHD_PIXEL_FORMAT_BGRA;
avctx->pix_fmt = AV_PIX_FMT_BGRA;
}
if(fmt!=obj->fmt){
obj->samples = 0;
obj->buf = 0;
obj->fmt = fmt;
}
}
void cfhd_set_format(AVCodecContext* avctx, nsVDXPixmap::VDXPixmapFormat vdfmt)
{
DecoderObj* obj = (DecoderObj*)avctx->priv_data;
CFHD_PixelFormat fmt;
switch(vdfmt){
case nsVDXPixmap::kPixFormat_YUV422_V210:
fmt = CFHD_PIXEL_FORMAT_V210;
avctx->pix_fmt = AV_PIX_FMT_RGB24; // best match
break;
case nsVDXPixmap::kPixFormat_YUV422_YU64:
fmt = CFHD_PIXEL_FORMAT_YU64;
avctx->pix_fmt = AV_PIX_FMT_RGB32; // best match
break;
case nsVDXPixmap::kPixFormat_RGB888:
//fmt = CFHD_PIXEL_FORMAT_RG24;
//avctx->pix_fmt = AV_PIX_FMT_BGR24;
fmt = CFHD_PIXEL_FORMAT_BGRA;
avctx->pix_fmt = AV_PIX_FMT_BGRA;
break;
case nsVDXPixmap::kPixFormat_XRGB8888:
fmt = CFHD_PIXEL_FORMAT_BGRA;
if(obj->encoded_format==CFHD_ENCODED_FORMAT_RGBA_4444)
avctx->pix_fmt = AV_PIX_FMT_BGRA;
else
avctx->pix_fmt = AV_PIX_FMT_BGR0;
break;
case nsVDXPixmap::kPixFormat_R210:
fmt = CFHD_PIXEL_FORMAT_R210;
avctx->pix_fmt = AV_PIX_FMT_BGRA; // best match
break;
case nsVDXPixmap::kPixFormat_XRGB64:
fmt = CFHD_PIXEL_FORMAT_B64A;
avctx->pix_fmt = AV_PIX_FMT_BGRA64;
break;
case nsVDXPixmap::kPixFormat_Y16:
fmt = CFHD_PIXEL_FORMAT_BYR4;
avctx->pix_fmt = AV_PIX_FMT_GRAY16;
break;
default:
cfhd_set_encoded_format(avctx);
return;
}
if(fmt!=obj->fmt){
obj->samples = 0;
obj->buf = 0;
obj->fmt = fmt;
}
}
void cfhd_get_info(AVCodecContext* avctx, FilterModPixmapInfo& info)
{
DecoderObj* obj = (DecoderObj*)avctx->priv_data;
info.alpha_type = FilterModPixmapInfo::kAlphaInvalid;
info.colorRangeMode = nsVDXPixmap::kColorRangeMode_None;
if(obj->encoded_format==CFHD_ENCODED_FORMAT_RGBA_4444) info.alpha_type = FilterModPixmapInfo::kAlphaMask;
if(obj->fmt==CFHD_PIXEL_FORMAT_B64A){
info.ref_r = 0xFFF0;
info.ref_g = 0xFFF0;
info.ref_b = 0xFFF0;
info.ref_a = 0xFFFF;
if(obj->encoded_format==CFHD_ENCODED_FORMAT_RGB_444 || obj->encoded_format==CFHD_ENCODED_FORMAT_RGBA_4444){
if(obj->input_depth==8){
info.ref_r = 0xFF00;
info.ref_g = 0xFF00;
info.ref_b = 0xFF00;
}
if(obj->input_depth==10){
info.ref_r = 0xFFC0;
info.ref_g = 0xFFC0;
info.ref_b = 0xFFC0;
}
}
}
if(obj->fmt==CFHD_PIXEL_FORMAT_YU64){
info.ref_r = 0xFFFF;
}
if(obj->fmt==CFHD_PIXEL_FORMAT_BYR4){
info.ref_r = 0xFFFF;
info.colorRangeMode = nsVDXPixmap::kColorRangeMode_Full;
}
}
bool cfhd_test_format(AVCodecContext* avctx, nsVDXPixmap::VDXPixmapFormat vdfmt)
{
DecoderObj* obj = (DecoderObj*)avctx->priv_data;
if(obj->encoded_format==CFHD_ENCODED_FORMAT_YUV_422){
switch(vdfmt){
case nsVDXPixmap::kPixFormat_YUV422_YUYV:
case nsVDXPixmap::kPixFormat_YUV422_V210:
case nsVDXPixmap::kPixFormat_YUV422_YU64:
//case nsVDXPixmap::kPixFormat_RGB888:
case nsVDXPixmap::kPixFormat_XRGB8888:
case nsVDXPixmap::kPixFormat_XRGB64:
return true;
}
}
if(obj->encoded_format==CFHD_ENCODED_FORMAT_RGB_444){
switch(vdfmt){
//case nsVDXPixmap::kPixFormat_RGB888:
case nsVDXPixmap::kPixFormat_XRGB8888:
case nsVDXPixmap::kPixFormat_R210:
case nsVDXPixmap::kPixFormat_XRGB64:
return true;
}
}
if(obj->encoded_format==CFHD_ENCODED_FORMAT_RGBA_4444){
switch(vdfmt){
case nsVDXPixmap::kPixFormat_XRGB8888:
//case nsVDXPixmap::kPixFormat_RGB888:
case nsVDXPixmap::kPixFormat_R210:
case nsVDXPixmap::kPixFormat_XRGB64:
return true;
}
}
if(obj->encoded_format==CFHD_ENCODED_FORMAT_BAYER){
switch(vdfmt){
case nsVDXPixmap::kPixFormat_XRGB8888:
//case nsVDXPixmap::kPixFormat_RGB888:
case nsVDXPixmap::kPixFormat_R210:
case nsVDXPixmap::kPixFormat_XRGB64:
return true;
case nsVDXPixmap::kPixFormat_Y16:
return true;
}
}
return false;
}
std::string cfhd_format_name(AVCodecContext* avctx)
{
DecoderObj* obj = (DecoderObj*)avctx->priv_data;
switch(obj->encoded_format){
case CFHD_ENCODED_FORMAT_YUV_422:
return "yuv422 10-bit";
case CFHD_ENCODED_FORMAT_RGB_444:
if(obj->input_depth==8) return "rgb 8/12-bit";
if(obj->input_depth==10) return "rgb 10/12-bit";
return "rgb 12-bit";
case CFHD_ENCODED_FORMAT_RGBA_4444:
if(obj->input_depth==8) return "rgba 8/12-bit";
if(obj->input_depth==10) return "rgba 10/12-bit";
return "rgba 12-bit";
case CFHD_ENCODED_FORMAT_BAYER:
return "bayer 12-bit";
default:
return "unknown";
}
}
void swap_b64a(AVCodecContext* avctx, void* data, int linesize)
{
{for(int y=0; y<avctx->height; y++){
uint16_t* src = (uint16_t*)data + y*linesize/2;
{for(int x=0; x<avctx->width; x++){
uint16_t a = src[0];
uint16_t r = src[1];
uint16_t g = src[2];
uint16_t b = src[3];
src[0] = b;
src[1] = g;
src[2] = r;
src[3] = a;
src += 4;
}}
}}
}
int cfhd_decode(AVCodecContext* avctx, void* data, int* got_frame, AVPacket* avpkt)
{
DecoderObj* obj = (DecoderObj*)avctx->priv_data;
if(!obj->fmt){
CFHD_SampleHeader header;
if(CFHD_ParseSampleHeader(avpkt->data,avpkt->size,&header)!=CFHD_ERROR_OKAY) return 0;
CFHD_EncodedFormat format;
header.GetEncodedFormat(&format);
obj->encoded_format = format;
COLOR_FORMAT input_format;
header.GetInputFormat(&input_format);
obj->input_format = input_format;
obj->input_depth = 0;
switch(format){
case CFHD_ENCODED_FORMAT_RGB_444:
case CFHD_ENCODED_FORMAT_RGBA_4444:
switch(input_format){
case COLOR_FORMAT_RGB24:
case COLOR_FORMAT_RGB32:
case COLOR_FORMAT_RGB32_INVERTED:
case COLOR_FORMAT_BGRA32:
case COLOR_FORMAT_QT32:
obj->input_depth = 8;
break;
case COLOR_FORMAT_R210:
case COLOR_FORMAT_RGB10:
case COLOR_FORMAT_RG30:
case COLOR_FORMAT_AR10:
case COLOR_FORMAT_AB10:
case COLOR_FORMAT_DPX0:
obj->input_depth = 10;
break;
}
break;
case CFHD_ENCODED_FORMAT_BAYER:
{
int w,h;
CFHD_PrepareToDecode(obj->dec,0,0,CFHD_PIXEL_FORMAT_BYR4,CFHD_DECODED_RESOLUTION_FULL,0,avpkt->data,avpkt->size,&w,&h,0);
avctx->width = w;
avctx->height = h;
}
break;
}
cfhd_set_encoded_format(avctx);
}
if(obj->samples==0){
CFHD_PixelFormat fmt_array[128];
int fmt_count = 0;
CFHD_GetOutputFormats(obj->dec,avpkt->data,avpkt->size,fmt_array,128,&fmt_count);
int w=0;
int h=0;
CFHD_PrepareToDecode(obj->dec,avctx->width,avctx->height,obj->fmt,CFHD_DECODED_RESOLUTION_FULL,0,avpkt->data,avpkt->size,&w,&h,&obj->fmt);
if(!obj->use_am){
CFHD_InitSampleMetadata(obj->meta,METADATATYPE_ORIGINAL,0,0);
unsigned int processflags = PROCESSING_ALL_OFF;
CFHD_SetActiveMetadata(obj->dec,obj->meta,TAG_PROCESS_PATH,METADATATYPE_UINT32,&processflags,sizeof(unsigned int));
}
//unsigned int maxcpus = 1;
//CFHD_SetActiveMetadata(obj->dec,obj->meta,TAG_CPU_MAX,METADATATYPE_UINT32,&maxcpus,sizeof(unsigned int));
}
obj->samples++;
int buf_size = avpkt->size;
AVFrame* frame = (AVFrame*)data;
bool key = (avpkt->flags & AV_PKT_FLAG_KEY)!=0;
frame->pict_type = key ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
frame->key_frame = key;
void* dst;
int linesize;
if(obj->buf){
frame->buf[0] = av_buffer_alloc(0); // needed to mute avcodec assert
AVFrame pic = {0};
av_image_fill_arrays(pic.data, pic.linesize, (uint8_t*)obj->buf, avctx->pix_fmt, avctx->width, avctx->height, 16);
if(obj->fmt==CFHD_PIXEL_FORMAT_V210){
int row = (avctx->width+47)/48*128;
pic.linesize[0] = row;
}
dst = obj->buf;
linesize = pic.linesize[0];
} else {
int frame_size = av_image_get_buffer_size(avctx->pix_fmt, avctx->width, avctx->height, 16);
frame->buf[0] = av_buffer_alloc(frame_size);
if(!frame->buf[0]) return AVERROR(ENOMEM);
const uint8_t* buf = frame->buf[0]->data;
av_image_fill_arrays(frame->data, frame->linesize, buf, avctx->pix_fmt, avctx->width, avctx->height, 16);
if(obj->fmt==CFHD_PIXEL_FORMAT_V210){
int row = (avctx->width+47)/48*128;
frame->linesize[0] = row;
}
dst = frame->data[0];
linesize = frame->linesize[0];
}
CFHD_DecodeSample(obj->dec,avpkt->data,avpkt->size,dst,linesize);
if(obj->fmt==CFHD_PIXEL_FORMAT_B64A) swap_b64a(avctx,dst,linesize);
if(obj->encoded_format==CFHD_ENCODED_FORMAT_YUV_422){
int flags = CFHD_get_decoder_color_flags(obj->dec);
if((flags & COLORSPACE_MASK)==COLOR_SPACE_BT_601) avctx->colorspace = AVCOL_SPC_BT470BG;
if((flags & COLORSPACE_MASK)==COLOR_SPACE_BT_709) avctx->colorspace = AVCOL_SPC_BT709;
}
*got_frame = 1;
return buf_size;
}
AVCodec cfhd_decoder;
void av_register_cfhd()
{
cfhd_decoder.name = "CineForm HD (native)";
cfhd_decoder.long_name = "CineForm HD (native)";
cfhd_decoder.type = AVMEDIA_TYPE_VIDEO;
cfhd_decoder.id = CFHD_ID;
cfhd_decoder.priv_data_size = sizeof(DecoderObj);
cfhd_decoder.init = cfhd_init_decoder;
cfhd_decoder.close = cfhd_close_decoder;
cfhd_decoder.decode = cfhd_decode;
cfhd_decoder.priv_class = 0;
cfhd_decoder.capabilities = 0;
avcodec_register(&cfhd_decoder);
}