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@ -9,6 +9,7 @@ typedef struct ncvisual {
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AVCodecContext* codecctx;
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AVFrame* frame;
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AVCodec* codec;
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AVCodecParameters* cparams;
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AVPacket* packet;
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struct SwsContext* swsctx;
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int packet_outstanding;
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@ -30,6 +31,7 @@ void ncvisual_destroy(ncvisual* ncv){
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avcodec_close(ncv->codecctx);
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avcodec_free_context(&ncv->codecctx);
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av_frame_free(&ncv->frame);
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avcodec_parameters_free(&ncv->cparams);
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sws_freeContext(ncv->swsctx);
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av_packet_free(&ncv->packet);
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avformat_close_input(&ncv->fmtctx);
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@ -37,6 +39,42 @@ void ncvisual_destroy(ncvisual* ncv){
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}
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}
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static void
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print_frame_summary(const AVCodecContext* cctx, const AVFrame* f){
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char pfmt[128];
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av_get_pix_fmt_string(pfmt, sizeof(pfmt), f->format);
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fprintf(stderr, "Frame %05d (%d? %d?) pfmt %d (%s) %lums@%lums (%skeyframe) qual: %d\n",
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cctx->frame_number,
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f->coded_picture_number,
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f->display_picture_number,
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f->format, pfmt,
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f->pkt_duration, // FIXME in 'time_base' units
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f->best_effort_timestamp,
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f->key_frame ? "" : "non-",
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f->quality);
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fprintf(stderr, " Data (%d):", AV_NUM_DATA_POINTERS);
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int i;
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for(i = 0 ; i < AV_NUM_DATA_POINTERS ; ++i){
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fprintf(stderr, " %p", f->data[i]);
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}
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fprintf(stderr, "\n Linesizes:");
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for(i = 0 ; i < AV_NUM_DATA_POINTERS ; ++i){
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fprintf(stderr, " %d", f->linesize[i]);
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}
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if(f->sample_aspect_ratio.num == 0 && f->sample_aspect_ratio.den == 1){
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fprintf(stderr, "\n Aspect ratio unknown");
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}else{
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fprintf(stderr, "\n Aspect ratio %d:%d", f->sample_aspect_ratio.num, f->sample_aspect_ratio.den);
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}
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if(f->interlaced_frame){
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fprintf(stderr, " [ILaced]");
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}
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if(f->palette_has_changed){
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fprintf(stderr, " [NewPal]");
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}
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fprintf(stderr, " PTS %ld Flags: 0x%04x\n", f->pts, f->flags);
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}
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AVFrame* ncvisual_decode(struct ncvisual* nc){
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int ret;
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if(nc->packet_outstanding){
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@ -54,8 +92,10 @@ AVFrame* ncvisual_decode(struct ncvisual* nc){
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fprintf(stderr, "Error decoding AVPacket (%s)\n", av_err2str(ret));
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return NULL;
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}
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print_frame_summary(nc->codecctx, nc->frame);
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return nc->frame;
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#define IMGALLOCALIGN 32
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fprintf(stderr, "Got frame %05d\n", nc->codecctx->frame_number);
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/*
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ret = av_image_alloc(nc->frame->data, nc->frame->linesize, nc->frame->width,
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nc->frame->height, nc->frame->format, IMGALLOCALIGN);
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if(ret < 0){
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@ -98,6 +138,7 @@ AVFrame* ncvisual_decode(struct ncvisual* nc){
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}
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#undef IMGALLOCALIGN
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return oframe;
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*/
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}
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ncvisual* ncplane_visual_open(struct ncplane* nc, const char* filename){
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@ -143,6 +184,14 @@ av_dump_format(ncv->fmtctx, 0, filename, false);
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fprintf(stderr, "Couldn't open codec for %s (%s)\n", filename, av_err2str(ret));
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goto err;
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}
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if((ncv->cparams = avcodec_parameters_alloc()) == NULL){
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fprintf(stderr, "Couldn't allocate codec params for %s\n", filename);
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goto err;
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}
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if((ret = avcodec_parameters_from_context(ncv->cparams, ncv->codecctx)) < 0){
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fprintf(stderr, "Couldn't get codec params for %s (%s)\n", filename, av_err2str(ret));
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goto err;
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}
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if((ret = avcodec_send_packet(ncv->codecctx, ncv->packet)) < 0){
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fprintf(stderr, "Error decoding packet from %s (%s)\n", filename,
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av_err2str(ret));
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