Add a quality factor packet side data

This is necessary to preserve the quality information currently exported
with coded_frame. Add the new side data to every encoder that needs it,
and use it in avconv.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index e8be1968c3..db077e9e67 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -930,6 +930,13 @@ enum AVPacketSideDataType {
      * to enum AVAudioServiceType.
      */
     AV_PKT_DATA_AUDIO_SERVICE_TYPE,
+
+    /**
+     * This side data contains an integer value representing the quality
+     * factor of the compressed frame. Allowed range is between 1 (good)
+     * and FF_LAMBDA_MAX (bad).
+     */
+    AV_PKT_DATA_QUALITY_FACTOR,
 };
 
 typedef struct AVPacketSideData {