Value x264Encode_AST(argList *a) {
struct x264EncodeParams *params = malloc(sizeof(struct x264EncodeParams));
checkArgs(a, 2, typeClip, typeStr);
MkvsynthOutput *output = MANDCLIP(0);
params->filename = strdup(MANDSTR(1));
params->x264params = strdup(OPTSTR("params", ""));
params->input = createInputBuffer(output);
if(isMetaDataValid(params->input->metaData) != 1)
MkvsynthError("invalid colorspace!");
mkvsynthQueue((void *)params, x264Encode);
RETURNNULL();
}
Value writeRawFile_AST(argList *a) {
struct writeRawFileParams *params = malloc(sizeof(struct writeRawFileParams));
checkArgs(a, 2, typeClip, typeStr);
MkvsynthOutput *output = MANDCLIP(0);
char *filename = MANDSTR(1);
////////////////////
// Error Checking //
////////////////////
params->file = fopen(filename, "w");
if(params->file == NULL)
MkvsynthError("Could not open the output file!");
params->input = createInputBuffer(output);
mkvsynthQueue((void *)params, writeRawFile);
RETURNNULL();
}
void writeRawFile_AST(ASTnode *p, ASTnode *args) {
struct writeRawFileParams *params = malloc(sizeof(struct writeRawFileParams));
checkArgs("writeRawFile", args, 2, typeClip, typeStr);
MkvsynthOutput *output = MANDCLIP();
char *filename = MANDSTR();
////////////////////
// Error Checking //
////////////////////
params->file = fopen(filename, "w");
if(params->file == NULL) {
printf("Could not open the output file!\n");
exit(0);
}
params->input = createInputBuffer(output);
mkvsynthQueue((void *)params, writeRawFile);
}
Value ffmpegDecode_AST(argList *a) {
///////////////////////////
// Parse Input Arguments //
///////////////////////////
struct ffmpegDecode *params = malloc(sizeof(struct ffmpegDecode));
checkArgs(a, 1, typeStr);
char *filename = MANDSTR(0);
params->output = createOutputBuffer();
//////////////////////////////
// Initialize Stuff To NULL //
//////////////////////////////
params->formatContext = NULL;
params->codecContext = NULL;
params->codec = NULL;
params->frame = NULL;
params->rgbFrame = NULL;
params->rgbFramePayload = NULL;
//////////////////////////////////////
// Error Checking And Initializtion //
//////////////////////////////////////
av_register_all();
int avOpen = avformat_open_input(¶ms->formatContext, filename, NULL, NULL);
if(avOpen != 0)
MkvsynthError("Input file could not be opened.");
if(avformat_find_stream_info(params->formatContext, NULL) < 0)
MkvsynthError("Input file does not seem to be a video.");
av_dump_format(params->formatContext, 0, filename, 0);
int i;
for(i = 0; i < params->formatContext->nb_streams; i++) {
if(params->formatContext->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
params->videoStream = i;
break;
}
}
if(params->videoStream == -1)
MkvsynthError("Input file does not seem to have a video stream.");
params->codecContext = params->formatContext->streams[params->videoStream]->codec;
params->codec = avcodec_find_decoder(params->codecContext->codec_id);
if(params->codec == NULL)
MkvsynthError("Unrecognized video codec.");
int openCodec = avcodec_open2(params->codecContext, params->codec, ¶ms->dictionary);
if(openCodec < 0)
MkvsynthError("Failed to open codec.");
params->frame = avcodec_alloc_frame();
params->rgbFrame = avcodec_alloc_frame();
int bytes = avpicture_get_size(PIX_FMT_RGB48, params->codecContext->width, params->codecContext->height);
params->rgbFramePayload = (uint8_t *)av_malloc(bytes);
params->resizeContext = sws_getContext (
params->codecContext->width,
params->codecContext->height,
params->codecContext->pix_fmt,
params->codecContext->width,
params->codecContext->height,
PIX_FMT_RGB48,
SWS_SPLINE,
NULL,
NULL,
NULL);
avpicture_fill((AVPicture *)params->rgbFrame, params->rgbFramePayload, PIX_FMT_RGB48, params->codecContext->width, params->codecContext->height);
///////////////
// Meta Data //
///////////////
params->output->metaData->width = params->codecContext->width;
params->output->metaData->height = params->codecContext->height;
params->output->metaData->colorspace = MKVS_RGB48;
params->output->metaData->fpsNumerator = params->formatContext->streams[params->videoStream]->avg_frame_rate.num;
params->output->metaData->fpsDenominator = params->formatContext->streams[params->videoStream]->avg_frame_rate.den;
//////////////////////
// Queue and Return //
//////////////////////
mkvsynthQueue((void *)params, ffmpegDecode);
RETURNCLIP(params->output);
}