From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id ADAC845D45 for ; Sun, 7 May 2023 13:34:11 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 73D1E68C14D; Sun, 7 May 2023 16:33:27 +0300 (EEST) Received: from mail0.khirnov.net (red.khirnov.net [176.97.15.12]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 42CAF68C104 for ; Sun, 7 May 2023 16:33:23 +0300 (EEST) Received: from localhost (localhost [IPv6:::1]) by mail0.khirnov.net (Postfix) with ESMTP id EA91E2404F5 for ; Sun, 7 May 2023 15:33:22 +0200 (CEST) Received: from mail0.khirnov.net ([IPv6:::1]) by localhost (mail0.khirnov.net [IPv6:::1]) (amavisd-new, port 10024) with ESMTP id H35RnOpEv3M5 for ; Sun, 7 May 2023 15:33:21 +0200 (CEST) Received: from libav.khirnov.net (libav.khirnov.net [IPv6:2a00:c500:561:201::7]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "libav.khirnov.net", Issuer "smtp.khirnov.net SMTP CA" (verified OK)) by mail0.khirnov.net (Postfix) with ESMTPS id 494AA2406CD for ; Sun, 7 May 2023 15:33:15 +0200 (CEST) Received: from libav.khirnov.net (libav.khirnov.net [IPv6:::1]) by libav.khirnov.net (Postfix) with ESMTP id 329D33A031B for ; Sun, 7 May 2023 15:33:05 +0200 (CEST) From: Anton Khirnov To: ffmpeg-devel@ffmpeg.org Date: Sun, 7 May 2023 15:32:43 +0200 Message-Id: <20230507133255.20881-1-anton@khirnov.net> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 01/13] lavu/frame: extend AVFrame.repeat_pict documentation X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: --- libavutil/frame.h | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/libavutil/frame.h b/libavutil/frame.h index f2b56beebb..ed3f199ce1 100644 --- a/libavutil/frame.h +++ b/libavutil/frame.h @@ -491,8 +491,22 @@ typedef struct AVFrame { void *opaque; /** - * When decoding, this signals how much the picture must be delayed. - * extra_delay = repeat_pict / (2*fps) + * Number of fields in this frame which should be repeated, i.e. the total + * duration of this frame should be repeat_pict + 2 normal field durations. + * + * For interlaced frames this field may be set to 1, which signals that this + * frame should be presented as 3 fields: beginning with the first field (as + * determined by AV_FRAME_FLAG_TOP_FIELD_FIRST being set or not), followed + * by the second field, and then the first field again. + * + * For progressive frames this field may be set to a multiple of 2, which + * signals that this frame's duration should be (repeat_pict + 2) / 2 + * normal frame durations. + * + * @note This field is computed from MPEG2 repeat_first_field flag and its + * associated flags, H.264 pic_struct from picture timing SEI, and + * their analogues in other codecs. Typically it should only be used when + * higher-layer timing information is not available. */ int repeat_pict; -- 2.39.2 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".