Re: [FFmpeg-user] Copy all metadata fields?
On 18/03/2020 14:29, Kieran O Leary wrote: On Wed 18 Mar 2020, 12:54 Peter B., wrote: Oh, and yes: absolutely correct! Color information is gone. Is there any way that this kind of metadata can also be transferred - even if I don't explicitely know it's there? I raised this before and I think you have to set the output values manually. I found this when Transcoding from mov to mkv, colour values were lost. Tobias's advice here still stands I think https://ffmpeg.org/pipermail/ffmpeg-user/2018-July/040717.html I remember seeing this back then. I'll read it again. Thanks for pointing it out Kieran! The mentioned patch "Pass colour range from source to sink" (https://ffmpeg.org/pipermail/ffmpeg-devel/2018-February/225512.html) by Philip Langdale sounds to me like it would enable this. Quote: // "However, we don't support a way to pass it through filter chains and 'ffmpeg' does not make any attempt to set it on the encoder. This set of changes introduces a way to do this, by defining a new filter link property, and allowing it to be set on a buffersrc and read back from a buffersink." // From taking a quick peek at the related thread(s), it looks like Philip never replied to Michael's questions/comments. Does anyone know what happened to this idea/feature/patch? Thanks in advance! Peter ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Copy all metadata fields?
Hi, On Wed 18 Mar 2020, 12:54 Peter B., wrote: > > Oh, and yes: absolutely correct! Color information is gone. > Is there any way that this kind of metadata can also be transferred - > even if I don't explicitely know it's there? > I raised this before and I think you have to set the output values manually. I found this when Transcoding from mov to mkv, colour values were lost. Tobias's advice here still stands I think https://ffmpeg.org/pipermail/ffmpeg-user/2018-July/040717.html Best, Kieran ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Copy all metadata fields?
Thanks Ulf, Thanks Paul! On 18/03/2020 11:14, Paul B Mahol wrote: On 3/18/20, Ulf Zibis wrote: Hi Peter, you can use "-map_metadata 0". It copies all possible metadata from input to output. "-map_metadata 0": Ah, how can I have overlooked that? Thank you! Now more metadata is present in the output, but according to Mediainfo there still differences: (Sorry for being picky ;P) 1) "tagged date" overwritten by "encoded date" In original MOV: * Encoded date : UTC 2012-01-18 12:50:53 * Tagged date : UTC 2012-01-18 12:54:48 In rewrapped MOV: * Encoded date : UTC 2012-01-18 12:50:53 * Tagged date : UTC 2012-01-18 12:50:53 I cannot find the "tagged date" value in the source file using ffmpeg/ffprobe - only Mediainfo. But there seems to be a difference between source and target after rewrapping. 1) "TIM" missing in output FFmpeg copies timecode information from the video stream, but Mediainfo also shows "TIM" in the source container. Is it on purpose that this timecode field is not kept? One could argue that this is trivial, but for preservation we're trying to keep as much of the source "as-is" :) I'm sure that color information is not part of that metadata. And it must be set manually. Oh, and yes: absolutely correct! Color information is gone. Is there any way that this kind of metadata can also be transferred - even if I don't explicitely know it's there? The use case is that literally thousands of files are automatically rewrapped/transcoded and the source material can be very heterogeneous... Lots of fun! Again, I'm grateful for any hints or input on how I can preserve as much of the original (tech)-metadata as possible. Thanks again! Peter ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Copy all metadata fields?
On 3/18/20, Ulf Zibis wrote: > Hi Peter, > > you can use "-map_metadata 0". > It copies all possible metadata from input to output. I'm sure that color information is not part of that metadata. And it must be set manually. > > -Ulf > > Am 18.03.20 um 07:49 schrieb Peter B.: >> Hi everyone! >> >> Is it possible to ask/force FFmpeg to keep as many metadata fields as >> technically possible when transcoding or rewrapping? >> >> I understand that not all (container-)formats support the same metadata >> fields, but I've noticed for example that when rewrapping, not all >> metadata fields that were populated in the input are then present in the >> output - even if the format is identical. >> >> >> Here is an example of rewrapping MOV to MOV where I've noticed the >> following data missing in the output (commandline and output see below): >> >> * color information (smpte170m/bt470bg/bt709) >> * creation_time (*) >> >> >> I'm grateful for any hints or suggestions! >> Thank you in advance, >> Peter >> >> (*) Copying "creation_time" may be controversial, but it would be amazing >> to be able to preserve this information in the output (e.g. map it to a >> different field?). >> >> >> >> >> Files were created with the following command: >> // >> $ ffmpeg -i in.mov -c copy -map 0 out.mov >> // >> >> >> Then metadata checked as follows: >> // >> $ ffmpeg -i in.mov -i out.mov -hide_banner >> // >> >> >> >> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'in.mov': >> Metadata: >> major_brand : qt >> minor_version : 0 >> compatible_brands: qt >> creation_time : 2012-01-18T12:50:53.00Z >> Duration: 00:03:54.80, start: 0.00, bitrate: 30453 kb/s >> Stream #0:0(und): Video: dvvideo (dvcp / 0x70637664), >> yuv420p(smpte170m/bt470bg/bt709, bottom coded first (swapped)), 720x576 >> [SAR 16:15 DAR 4:3], 28800 kb/s, SAR 59:54 DAR 295:216, 25 fps, 25 tbr, >> 25k tbn, 25 tbc (default) >> Metadata: >> creation_time : 2012-01-18T12:50:53.00Z >> handler_name: Core Media Video >> encoder : DV - PAL >> timecode: 00:37:50:04 >> Stream #0:1(und): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, >> stereo, s16, 1536 kb/s (default) >> Metadata: >> creation_time : 2012-01-18T12:50:53.00Z >> handler_name: Core Media Audio >> Stream #0:2(und): Data: none (tmcd / 0x64636D74) >> Metadata: >> creation_time : 2012-01-18T12:50:53.00Z >> handler_name: Core Media Time Code >> reel_name : 2001-11-10_KveldsseteKaarvatn >> timecode: 00:37:50:04 >> >> >> Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'out.mov': >> Metadata: >> major_brand : qt >> minor_version : 512 >> compatible_brands: qt >> encoder : Lavf58.33.100 >> Duration: 00:03:54.84, start: 0.00, bitrate: 30333 kb/s >> Stream #1:0: Video: dvvideo (dvcp / 0x70637664), yuv420p(bottom coded >> first (swapped)), 720x576 [SAR 16:15 DAR 4:3], 28800 kb/s, SAR 59:54 DAR >> 295:216, 25 fps, 25 tbr, 25k tbn, 25 tbc (default) >> Metadata: >> handler_name: Core Media Video >> encoder : DV - PAL >> timecode: 00:37:50:04 >> Stream #1:1: Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, >> s16, 1536 kb/s (default) >> Metadata: >> handler_name: Core Media Audio >> Stream #1:2: Data: none (tmcd / 0x64636D74) >> Metadata: >> handler_name: Core Media Time Code >> reel_name : 2001-11-10_KveldsseteKaarvatn >> timecode: 00:37:50:04 >> At least one output file must be specified >> >> >> >> >> >> >> >> >> >> ___ >> ffmpeg-user mailing list >> ffmpeg-user@ffmpeg.org >> https://ffmpeg.org/mailman/listinfo/ffmpeg-user >> >> To unsubscribe, visit link above, or email >> ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Copy all metadata fields?
Hi Peter, you can use "-map_metadata 0". It copies all possible metadata from input to output. -Ulf Am 18.03.20 um 07:49 schrieb Peter B.: Hi everyone! Is it possible to ask/force FFmpeg to keep as many metadata fields as technically possible when transcoding or rewrapping? I understand that not all (container-)formats support the same metadata fields, but I've noticed for example that when rewrapping, not all metadata fields that were populated in the input are then present in the output - even if the format is identical. Here is an example of rewrapping MOV to MOV where I've noticed the following data missing in the output (commandline and output see below): * color information (smpte170m/bt470bg/bt709) * creation_time (*) I'm grateful for any hints or suggestions! Thank you in advance, Peter (*) Copying "creation_time" may be controversial, but it would be amazing to be able to preserve this information in the output (e.g. map it to a different field?). Files were created with the following command: // $ ffmpeg -i in.mov -c copy -map 0 out.mov // Then metadata checked as follows: // $ ffmpeg -i in.mov -i out.mov -hide_banner // Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'in.mov': Metadata: major_brand : qt minor_version : 0 compatible_brands: qt creation_time : 2012-01-18T12:50:53.00Z Duration: 00:03:54.80, start: 0.00, bitrate: 30453 kb/s Stream #0:0(und): Video: dvvideo (dvcp / 0x70637664), yuv420p(smpte170m/bt470bg/bt709, bottom coded first (swapped)), 720x576 [SAR 16:15 DAR 4:3], 28800 kb/s, SAR 59:54 DAR 295:216, 25 fps, 25 tbr, 25k tbn, 25 tbc (default) Metadata: creation_time : 2012-01-18T12:50:53.00Z handler_name : Core Media Video encoder : DV - PAL timecode : 00:37:50:04 Stream #0:1(und): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default) Metadata: creation_time : 2012-01-18T12:50:53.00Z handler_name : Core Media Audio Stream #0:2(und): Data: none (tmcd / 0x64636D74) Metadata: creation_time : 2012-01-18T12:50:53.00Z handler_name : Core Media Time Code reel_name : 2001-11-10_KveldsseteKaarvatn timecode : 00:37:50:04 Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'out.mov': Metadata: major_brand : qt minor_version : 512 compatible_brands: qt encoder : Lavf58.33.100 Duration: 00:03:54.84, start: 0.00, bitrate: 30333 kb/s Stream #1:0: Video: dvvideo (dvcp / 0x70637664), yuv420p(bottom coded first (swapped)), 720x576 [SAR 16:15 DAR 4:3], 28800 kb/s, SAR 59:54 DAR 295:216, 25 fps, 25 tbr, 25k tbn, 25 tbc (default) Metadata: handler_name : Core Media Video encoder : DV - PAL timecode : 00:37:50:04 Stream #1:1: Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default) Metadata: handler_name : Core Media Audio Stream #1:2: Data: none (tmcd / 0x64636D74) Metadata: handler_name : Core Media Time Code reel_name : 2001-11-10_KveldsseteKaarvatn timecode : 00:37:50:04 At least one output file must be specified ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] Copy all metadata fields?
Hi everyone! Is it possible to ask/force FFmpeg to keep as many metadata fields as technically possible when transcoding or rewrapping? I understand that not all (container-)formats support the same metadata fields, but I've noticed for example that when rewrapping, not all metadata fields that were populated in the input are then present in the output - even if the format is identical. Here is an example of rewrapping MOV to MOV where I've noticed the following data missing in the output (commandline and output see below): * color information (smpte170m/bt470bg/bt709) * creation_time (*) I'm grateful for any hints or suggestions! Thank you in advance, Peter (*) Copying "creation_time" may be controversial, but it would be amazing to be able to preserve this information in the output (e.g. map it to a different field?). Files were created with the following command: // $ ffmpeg -i in.mov -c copy -map 0 out.mov // Then metadata checked as follows: // $ ffmpeg -i in.mov -i out.mov -hide_banner // Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'in.mov': Metadata: major_brand : qt minor_version : 0 compatible_brands: qt creation_time : 2012-01-18T12:50:53.00Z Duration: 00:03:54.80, start: 0.00, bitrate: 30453 kb/s Stream #0:0(und): Video: dvvideo (dvcp / 0x70637664), yuv420p(smpte170m/bt470bg/bt709, bottom coded first (swapped)), 720x576 [SAR 16:15 DAR 4:3], 28800 kb/s, SAR 59:54 DAR 295:216, 25 fps, 25 tbr, 25k tbn, 25 tbc (default) Metadata: creation_time : 2012-01-18T12:50:53.00Z handler_name : Core Media Video encoder : DV - PAL timecode : 00:37:50:04 Stream #0:1(und): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default) Metadata: creation_time : 2012-01-18T12:50:53.00Z handler_name : Core Media Audio Stream #0:2(und): Data: none (tmcd / 0x64636D74) Metadata: creation_time : 2012-01-18T12:50:53.00Z handler_name : Core Media Time Code reel_name : 2001-11-10_KveldsseteKaarvatn timecode : 00:37:50:04 Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'out.mov': Metadata: major_brand : qt minor_version : 512 compatible_brands: qt encoder : Lavf58.33.100 Duration: 00:03:54.84, start: 0.00, bitrate: 30333 kb/s Stream #1:0: Video: dvvideo (dvcp / 0x70637664), yuv420p(bottom coded first (swapped)), 720x576 [SAR 16:15 DAR 4:3], 28800 kb/s, SAR 59:54 DAR 295:216, 25 fps, 25 tbr, 25k tbn, 25 tbc (default) Metadata: handler_name : Core Media Video encoder : DV - PAL timecode : 00:37:50:04 Stream #1:1: Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default) Metadata: handler_name : Core Media Audio Stream #1:2: Data: none (tmcd / 0x64636D74) Metadata: handler_name : Core Media Time Code reel_name : 2001-11-10_KveldsseteKaarvatn timecode : 00:37:50:04 At least one output file must be specified ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
