ffmpeg | branch: master | Clément Bœsch <u...@pkh.me> | Tue Dec 26 22:31:33 2023 +0100| [2142141a16158c691eeaac4824d1ceefc460ef9a] | committer: Clément Bœsch
avcodec/proresenc: make transparency honored in mov/QT In the mov muxer (in mov_write_video_tag()), bits_per_coded_sample will be written under certain conditions and is required to be 32 for the transparency to be honored in QuickTime. prores_kostya already has this setting but prores_anatoliy and prores_videotoolbox didn't. > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2142141a16158c691eeaac4824d1ceefc460ef9a --- libavcodec/proresenc_anatoliy.c | 3 +++ libavcodec/videotoolboxenc.c | 2 ++ 2 files changed, 5 insertions(+) diff --git a/libavcodec/proresenc_anatoliy.c b/libavcodec/proresenc_anatoliy.c index a1cb46aa59..16741afd68 100644 --- a/libavcodec/proresenc_anatoliy.c +++ b/libavcodec/proresenc_anatoliy.c @@ -930,6 +930,9 @@ static av_cold int prores_encode_init(AVCodecContext *avctx) } } + if (ctx->need_alpha) + avctx->bits_per_coded_sample = 32; + ff_fdctdsp_init(&ctx->fdsp, avctx); avctx->codec_tag = AV_RL32((const uint8_t*)profiles[avctx->profile].name); diff --git a/libavcodec/videotoolboxenc.c b/libavcodec/videotoolboxenc.c index 15e0e1fe29..644fd60b00 100644 --- a/libavcodec/videotoolboxenc.c +++ b/libavcodec/videotoolboxenc.c @@ -521,6 +521,8 @@ static CMVideoCodecType get_cm_codec_type(AVCodecContext *avctx, } return kCMVideoCodecType_HEVC; case AV_CODEC_ID_PRORES: + if (desc && (desc->flags & AV_PIX_FMT_FLAG_ALPHA)) + avctx->bits_per_coded_sample = 32; switch (profile) { case AV_PROFILE_PRORES_PROXY: return MKBETAG('a','p','c','o'); // kCMVideoCodecType_AppleProRes422Proxy _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
