avformat/avienc: Store pal8 palette

This can be made more efficient, but first and the main goal of this change is to
store it at all

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

1 files changed, 6 insertions, 1 deletions

diff --git a/libavformat/internal.h b/libavformat/internal.h
index 93be63249e..bc6a6c2716 100644
--- a/libavformat/internal.h
+++ b/libavformat/internal.h
@@ -560,11 +560,16 @@ void ff_format_io_close(AVFormatContext *s, AVIOContext **pb);
  */
 int ff_parse_creation_time_metadata(AVFormatContext *s, int64_t *timestamp, int return_seconds);
 
+
+#define CONTAINS_PAL 2
 /**
  * Reshuffles the lines to use the user specified stride.
  *
  * @param ppkt input and output packet
- * @return negative error code or 0 or 1, 1 indicates that ppkt needs to be freed
+ * @return negative error code or
+ *         0 if no new packet was allocated
+ *         non-zero if a new packet was allocated and ppkt has to be freed
+ *         CONTAINS_PAL if in addition to a new packet the old contained a palette
  */
 int ff_reshuffle_raw_rgb(AVFormatContext *s, AVPacket **ppkt, AVCodecContext *enc, int expected_stride);