avcodec: add AVCodecContext.sw_pix_fmt

This carries the pixel format that would be used if it were not for
hardware acceleration. This is equal to AVCodecContext.pix_fmt if
hardware acceleration is not in use.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

1 files changed, 7 insertions, 0 deletions

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 7df64ae93d..c998ee41c2 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -2800,6 +2800,13 @@ typedef struct AVCodecContext {
      * - encoding: unused
      */
     AVRational framerate;
+
+    /**
+     * Nominal unaccelerated pixel format, see AV_PIX_FMT_xxx.
+     * - encoding: unused.
+     * - decoding: Set by libavcodec before calling get_format()
+     */
+    enum AVPixelFormat sw_pix_fmt;
 } AVCodecContext;
 
 /**