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libav: keep the alpha channel, AV_PIX_FMT_RGBA

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nick black 2019-12-01 15:03:39 -05:00 committed by Nick Black
parent 7600b9ed54
commit 3ede80f47f
1 changed files with 3 additions and 3 deletions
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6
src/lib/libav.c
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@ -68,7 +68,6 @@ print_frame_summary(const AVCodecContext* cctx, const AVFrame* f){
}
AVFrame* ncvisual_decode(struct ncvisual* nc, int* averr){
fprintf(stderr, "\n*********************running decode+scale\n");
if(nc->packet_outstanding){
*averr = avcodec_send_packet(nc->codecctx, nc->packet);
if(*averr < 0){
@ -86,13 +85,14 @@ fprintf(stderr, "\n*********************running decode+scale\n");
}
print_frame_summary(nc->codecctx, nc->frame);
#define IMGALLOCALIGN 32
const int targformat = AV_PIX_FMT_RGBA;
nc->swsctx = sws_getCachedContext(nc->swsctx,
nc->frame->width,
nc->frame->height,
nc->frame->format,
nc->dstwidth,
nc->dstheight,
AV_PIX_FMT_RGB24,
targformat,
SWS_LANCZOS,
NULL, NULL, NULL);
if(nc->swsctx == NULL){
@ -100,7 +100,7 @@ print_frame_summary(nc->codecctx, nc->frame);
return NULL;
}
memcpy(nc->oframe, nc->frame, sizeof(*nc->oframe));
nc->oframe->format = AV_PIX_FMT_RGB24;
nc->oframe->format = targformat;
nc->oframe->width = nc->dstwidth;
nc->oframe->height = nc->dstheight;
if((*averr = av_image_alloc(nc->oframe->data, nc->oframe->linesize,