avformat/movenc: enable compressorname for mp4 mode

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>

libavformat/movenc.c

@@ -2122,7 +2122,9 @@ static void find_compressor(char * compressor_name, int len, MOVTrack *track)
                   || (track->par->width == 1440 && track->par->height == 1080)
                   || (track->par->width == 1920 && track->par->height == 1080);
 
-    if ((track->mode == MODE_AVIF || track->mode == MODE_MOV) &&
+    if ((track->mode == MODE_AVIF ||
+         track->mode == MODE_MOV ||
+         track->mode == MODE_MP4) &&
         (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
         av_strlcpy(compressor_name, encoder->value, 32);
     } else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
@@ -2211,7 +2213,6 @@ static int mov_write_video_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContex
     avio_wb32(pb, 0); /* Data size (= 0) */
     avio_wb16(pb, 1); /* Frame count (= 1) */
 
-    /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
     find_compressor(compressor_name, 32, track);
     avio_w8(pb, strlen(compressor_name));
     avio_write(pb, compressor_name, 31);

tests/ref/lavf/mp4

@@ -1,9 +1,9 @@
-71c4ff2e747fe6f8169ff29244fe181d *tests/data/lavf/lavf.mp4
+a6e44724cab1c4b50c49b0fd227b87d3 *tests/data/lavf/lavf.mp4
 312477 tests/data/lavf/lavf.mp4
 tests/data/lavf/lavf.mp4 CRC=0x9d9a638a
-3c5734ad6d05e4afc2ccefef1385e882 *tests/data/lavf/lavf.mp4
+19cbdb02f2f3e35bae779e2323be1b8e *tests/data/lavf/lavf.mp4
 321363 tests/data/lavf/lavf.mp4
 tests/data/lavf/lavf.mp4 CRC=0xe8130120
-07348e31d11d92396e1eedc48ea14802 *tests/data/lavf/lavf.mp4
+8ab9dd09f02b6d8146a40fc3c918d979 *tests/data/lavf/lavf.mp4
 312021 tests/data/lavf/lavf.mp4
 tests/data/lavf/lavf.mp4 CRC=0x9d9a638a

tests/ref/vsynth/vsynth1-mpeg4

@@ -1,4 +1,4 @@
-a7e57333c57e0f8a551374b063a41d9e *tests/data/fate/vsynth1-mpeg4.mp4
+7825630f9100ce18338dc598b56619ab *tests/data/fate/vsynth1-mpeg4.mp4
 540105 tests/data/fate/vsynth1-mpeg4.mp4
 f80ec173d37f2f91add031e95579a220 *tests/data/fate/vsynth1-mpeg4.out.rawvideo
 stddev:    7.97 PSNR: 30.10 MAXDIFF:  105 bytes:  7603200/  7603200

tests/ref/vsynth/vsynth2-mpeg4

@@ -1,4 +1,4 @@
-b751a2d3b4e693ca39d4fafa0175fc9d *tests/data/fate/vsynth2-mpeg4.mp4
+74ab83b391f9c90f7f00fe2c3dfb6b3d *tests/data/fate/vsynth2-mpeg4.mp4
 159330 tests/data/fate/vsynth2-mpeg4.mp4
 2645405bc5350acc85ad72f3352f5135 *tests/data/fate/vsynth2-mpeg4.out.rawvideo
 stddev:    6.02 PSNR: 32.53 MAXDIFF:   89 bytes:  7603200/  7603200

tests/ref/vsynth/vsynth3-mpeg4

@@ -1,4 +1,4 @@
-7ca3bbb8bed55d558346d258f5bea440 *tests/data/fate/vsynth3-mpeg4.mp4
+963a2970c57e1c7d46e209d5392fbeec *tests/data/fate/vsynth3-mpeg4.mp4
 26037 tests/data/fate/vsynth3-mpeg4.mp4
 fc0d8c1e58d254031e6207dfcae8f867 *tests/data/fate/vsynth3-mpeg4.out.rawvideo
 stddev:    9.66 PSNR: 28.43 MAXDIFF:   79 bytes:    86700/    86700

tests/ref/vsynth/vsynth_lena-mpeg4

@@ -1,4 +1,4 @@
-a0d0edee19f6658d0e93d294e32a1a6f *tests/data/fate/vsynth_lena-mpeg4.mp4
+954162c34c24abe7a8fa6bfadcbb7dee *tests/data/fate/vsynth_lena-mpeg4.mp4
 119742 tests/data/fate/vsynth_lena-mpeg4.mp4
 9a1e085d9e488c5ead0c940c9612a37a *tests/data/fate/vsynth_lena-mpeg4.out.rawvideo
 stddev:    5.34 PSNR: 33.57 MAXDIFF:   83 bytes:  7603200/  7603200