ffmpeg | branch: master | Jan Ekström <jee...@gmail.com> | Sun Jun 19 20:21:26 2022 +0300| [49027e7612ac3f349f5fa8b6d8cc0c6a4036d05c] | committer: Jan Ekström
avcodec/libx265: make X265 CSP selection pixel format independent Currently the format listing misses the J formats completely, yet they are marked as supported in the encoder. Thus to make the logic support them while not explicitly listing them, make the logic utilize chroma subsampling information in both width and height available through the pixel format descriptor. > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=49027e7612ac3f349f5fa8b6d8cc0c6a4036d05c --- libavcodec/libx265.c | 61 ++++++++++++++++++++++++++-------------------------- 1 file changed, 31 insertions(+), 30 deletions(-) diff --git a/libavcodec/libx265.c b/libavcodec/libx265.c index 4dcdcd7a77..f68ecb3092 100644 --- a/libavcodec/libx265.c +++ b/libavcodec/libx265.c @@ -240,39 +240,40 @@ static av_cold int libx265_encode_init(AVCodecContext *avctx) } } - switch (avctx->pix_fmt) { - case AV_PIX_FMT_YUV420P: - case AV_PIX_FMT_YUV420P10: - case AV_PIX_FMT_YUV420P12: - ctx->params->internalCsp = X265_CSP_I420; - break; - case AV_PIX_FMT_YUV422P: - case AV_PIX_FMT_YUV422P10: - case AV_PIX_FMT_YUV422P12: - ctx->params->internalCsp = X265_CSP_I422; - break; - case AV_PIX_FMT_GBRP: - case AV_PIX_FMT_GBRP10: - case AV_PIX_FMT_GBRP12: - ctx->params->vui.matrixCoeffs = AVCOL_SPC_RGB; - ctx->params->vui.bEnableVideoSignalTypePresentFlag = 1; - ctx->params->vui.bEnableColorDescriptionPresentFlag = 1; - case AV_PIX_FMT_YUV444P: - case AV_PIX_FMT_YUV444P10: - case AV_PIX_FMT_YUV444P12: + switch (desc->log2_chroma_w) { + // 4:4:4, RGB. gray + case 0: + // gray + if (desc->nb_components == 1) { + if (ctx->api->api_build_number < 85) { + av_log(avctx, AV_LOG_ERROR, + "libx265 version is %d, must be at least 85 for gray encoding.\n", + ctx->api->api_build_number); + return AVERROR_INVALIDDATA; + } + ctx->params->internalCsp = X265_CSP_I400; + break; + } + + // set identity matrix for RGB + if (desc->flags & AV_PIX_FMT_FLAG_RGB) { + ctx->params->vui.matrixCoeffs = AVCOL_SPC_RGB; + ctx->params->vui.bEnableVideoSignalTypePresentFlag = 1; + ctx->params->vui.bEnableColorDescriptionPresentFlag = 1; + } + ctx->params->internalCsp = X265_CSP_I444; break; - case AV_PIX_FMT_GRAY8: - case AV_PIX_FMT_GRAY10: - case AV_PIX_FMT_GRAY12: - if (ctx->api->api_build_number < 85) { - av_log(avctx, AV_LOG_ERROR, - "libx265 version is %d, must be at least 85 for gray encoding.\n", - ctx->api->api_build_number); - return AVERROR_INVALIDDATA; - } - ctx->params->internalCsp = X265_CSP_I400; + // 4:2:0, 4:2:2 + case 1: + ctx->params->internalCsp = desc->log2_chroma_h == 1 ? + X265_CSP_I420 : X265_CSP_I422; break; + default: + av_log(avctx, AV_LOG_ERROR, + "Pixel format '%s' cannot be mapped to a libx265 CSP!\n", + desc->name); + return AVERROR_BUG; } if (ctx->crf >= 0) { _______________________________________________ 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".
