diff --git a/ffmpeg.c b/ffmpeg.c index f0135315b9..90f05ce12f 100644 --- a/ffmpeg.c +++ b/ffmpeg.c @@ -764,6 +764,8 @@ static void choose_pixel_fmt(AVStream *st, AVCodec *codec) { if(codec && codec->pix_fmts){ const enum PixelFormat *p= codec->pix_fmts; + int has_alpha= av_pix_fmt_descriptors[st->codec->pix_fmt].nb_components % 2 == 0; + enum PixelFormat best= PIX_FMT_NONE; if(st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL){ if(st->codec->codec_id==CODEC_ID_MJPEG){ p= (const enum PixelFormat[]){PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE}; @@ -772,6 +774,7 @@ static void choose_pixel_fmt(AVStream *st, AVCodec *codec) } } for (; *p != PIX_FMT_NONE; p++) { + best= avcodec_find_best_pix_fmt2(best, *p, st->codec->pix_fmt, has_alpha, NULL); if(*p == st->codec->pix_fmt) break; } @@ -781,8 +784,8 @@ static void choose_pixel_fmt(AVStream *st, AVCodec *codec) "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n", av_pix_fmt_descriptors[st->codec->pix_fmt].name, codec->name, - av_pix_fmt_descriptors[codec->pix_fmts[0]].name); - st->codec->pix_fmt = codec->pix_fmts[0]; + av_pix_fmt_descriptors[best].name); + st->codec->pix_fmt = best; } } }