movenc.c: Force correct value for "Samples per packet" for pcm audio

Apple spec is for it to always be "1" for uncompressed audio.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/movenc.c

@@ -709,7 +709,11 @@ static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
     }
 
     if(version == 1) { /* SoundDescription V1 extended info */
-        avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
+        if (mov_pcm_le_gt16(track->enc->codec_id) ||
+            mov_pcm_be_gt16(track->enc->codec_id))
+            avio_wb32(pb, 1); /*  must be 1 for  uncompressed formats */
+        else
+            avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
         avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
         avio_wb32(pb, track->sample_size); /* Bytes per frame */
         avio_wb32(pb, 2); /* Bytes per sample */

tests/ref/fate/acodec-pcm-s24be

-cbf0bd68d21099335e197ae812834110 *tests/data/fate/acodec-pcm-s24be.mov
+f65a7ae3b70ca53ffa354b1e7ff3a33d *tests/data/fate/acodec-pcm-s24be.mov
 1588323 tests/data/fate/acodec-pcm-s24be.mov
 64151e4bcc2b717aa5a8454d424d6a1f *tests/data/fate/acodec-pcm-s24be.out.wav
 stddev:    0.00 PSNR:999.99 MAXDIFF:    0 bytes:  1058400/  1058400

tests/ref/fate/acodec-pcm-s32be

-856b157d3ab505f0859b0de692e6a8bc *tests/data/fate/acodec-pcm-s32be.mov
+f9e16fafeefb2285e943f53133e9cfd5 *tests/data/fate/acodec-pcm-s32be.mov
 2117527 tests/data/fate/acodec-pcm-s32be.mov
 64151e4bcc2b717aa5a8454d424d6a1f *tests/data/fate/acodec-pcm-s32be.out.wav
 stddev:    0.00 PSNR:999.99 MAXDIFF:    0 bytes:  1058400/  1058400