avformat/avformat: Remove AVOutputFormat.data_codec

No AVOutputFormat has this set.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

libavformat/avformat.h

@@ -614,7 +614,6 @@ typedef struct AVOutputFormat {
      * @see avdevice_list_devices() for more details.
      */
     int (*get_device_list)(struct AVFormatContext *s, struct AVDeviceInfoList *device_list);
-    enum AVCodecID data_codec; /**< default data codec */
     /**
      * Initialize format. May allocate data here, and set any AVFormatContext or
      * AVStream parameters that need to be set before packets are sent.

libavformat/format.c

@@ -111,8 +111,6 @@ enum AVCodecID av_guess_codec(const AVOutputFormat *fmt, const char *short_name,
         return fmt->audio_codec;
     else if (type == AVMEDIA_TYPE_SUBTITLE)
         return fmt->subtitle_codec;
-    else if (type == AVMEDIA_TYPE_DATA)
-        return fmt->data_codec;
     else
         return AV_CODEC_ID_NONE;
 }

libavformat/mux_utils.c

@@ -51,8 +51,7 @@ int avformat_query_codec(const AVOutputFormat *ofmt, enum AVCodecID codec_id,
             return !!av_codec_get_tag2(ofmt->codec_tag, codec_id, &codec_tag);
         else if (codec_id == ofmt->video_codec ||
                  codec_id == ofmt->audio_codec ||
-                 codec_id == ofmt->subtitle_codec ||
-                 codec_id == ofmt->data_codec)
+                 codec_id == ofmt->subtitle_codec)
             return 1;
     }
     return AVERROR_PATCHWELCOME;