Support for PCM WAV audio format

[Raffi111]

I spend a lot of time to find a perfect cutter software. Your software is nearly perfect! Easy to use, very comfortable and very fast. An at the end without problem with the final video files.

Only one - for me big - issue: It does not support native PCM WAV audio stream.

I can export the file, but always without audio. Only with the video stream. For preview it is possible to generate the audio, but thats not important for me. It is a standard m2ts file from SONY cameras like (HVR-NX5 or PXW-Z90).

Here the meta data for an example file:

_No error

{ "state": { "filePath": "G:\Video_NX5\20200207231109.m2ts", "fileFormat": "mpegts", "externalStreamFiles": [], "mainStreams": [ { "index": 0, "codec_name": "h264", "codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10", "profile": "High", "codec_type": "video", "codec_time_base": "1/50", "codec_tag_string": "HDMV", "codec_tag": "0x564d4448", "width": 1920, "height": 1080, "coded_width": 1920, "coded_height": 1088, "has_b_frames": 1, "sample_aspect_ratio": "1:1", "display_aspect_ratio": "16:9", "pix_fmt": "yuv420p", "level": 40, "chroma_location": "left", "field_order": "tt", "refs": 1, "is_avc": "false", "nal_length_size": "0", "id": "0x1011", "r_frame_rate": "50/1", "avg_frame_rate": "25/1", "time_base": "1/90000", "start_pts": 100800, "start_time": "1.120000", "duration_ts": 92370600, "duration": "1026.340000", "bits_per_raw_sample": "8", "disposition": { "default": 0, "dub": 0, "original": 0, "comment": 0, "lyrics": 0, "karaoke": 0, "forced": 0, "hearing_impaired": 0, "visual_impaired": 0, "clean_effects": 0, "attached_pic": 0, "timed_thumbnails": 0 } }, { "index": 1, "codec_name": "pcm_bluray", "codec_long_name": "PCM signed 16|20|24-bit big-endian for Blu-ray media", "codec_type": "audio", "codec_time_base": "1/48000", "codec_tag_string": "HDMV", "codec_tag": "0x564d4448", "sample_fmt": "s16", "sample_rate": "48000", "channels": 2, "channel_layout": "stereo", "bits_per_sample": 0, "id": "0x1100", "r_frame_rate": "0/0", "avg_frame_rate": "0/0", "time_base": "1/90000", "start_pts": 93600, "start_time": "1.040000", "duration_ts": 92383200, "duration": "1026.480000", "bit_rate": "1536000", "disposition": { "default": 0, "dub": 0, "original": 0, "comment": 0, "lyrics": 0, "karaoke": 0, "forced": 0, "hearing_impaired": 0, "visual_impaired": 0, "clean_effects": 0, "attached_pic": 0, "timed_thumbnails": 0 } } ], "copyStreamIdsByFile": { "G:\Video_NX5\20200207231109.m2ts": { "0": true, "1": true } }, "cutSegments": [ { "start": 0, "end": 84.96 } ], "fileFormatData": { "filename": "G:\Video_NX5\20200207231109.m2ts", "nb_streams": 2, "nb_programs": 1, "format_name": "mpegts", "format_long_name": "MPEG-TS (MPEG-2 Transport Stream)", "start_time": "1.040000", "duration": "1026.480000", "size": "3060019200", "bit_rate": "23848641", "probescore": 50 }, "rotation": 360, "shortestFlag": false } }

Is it possible to add support for this audio stream?

[mifi]

Please try the experimental checkbox in settings, and try different output formats. (e.g. MOV, MP4, MKV, TS)

[Raffi111]

Hi, thank you for your answer, but your tips dosen't help. Exorting in any format is without audio.

[mifi]

I found this: https://forum.doom9.org/showthread.php?t=174718

It seems that your file uses a codec pcm_bluray that ffmpeg is not able to encode or output at all (and probably never will be.)

I think you can solve this by extracting all streams/tracks, then use handbrake or FFMPEG or similar to convert the audio file to PCM. Then merge the streams again in losslesscut (drag drop the new file into losslesscut with the old file open). I added a feature request here: #372

[mifi]

You can also probably convert the audio using

ffmpeg -i G:/Video_NX5/20200207231109.m2ts -vn output_audio.wav

then import the resulting wav back into your video in losslesscut

[mifi]

does exporting audio track and then converting it to wav using the above command work? then re-introduce the wav file in losslesscut and output to MOV.