From d6f4fe68c8e87175e826fdca92e0f3c65793123e Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Wed, 17 Oct 2012 07:17:24 +0200
Subject: [PATCH] lavc: extend frame_size doxy.

---
 libavcodec/avcodec.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index cda6703167..64d45db349 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -2081,7 +2081,13 @@ typedef struct AVCodecContext {
 
     /* The following data should not be initialized. */
     /**
-     * Samples per packet, initialized when calling 'init'.
+     * Number of samples per channel in an audio frame.
+     *
+     * - encoding: set by libavcodec in avcodec_open2(). Each submitted frame
+     *   except the last must contain exactly frame_size samples per channel.
+     *   May be 0 when the codec has CODEC_CAP_VARIABLE_FRAME_SIZE set, then the
+     *   frame size is not restricted.
+     * - decoding: may be set by some decoders to indicate constant frame size
      */
     int frame_size;