[FFmpeg-devel] [PATCH] mxfdec.c: prefer metadata from Footer

Marton Balint cus at passwd.hu
Sun Jun 27 13:03:43 EEST 2021 


On Sat, 26 Jun 2021, emcodem wrote:

> In case there is a Footer, regarding to SMPTE 377 all versions, the metadata in Footer shall be correct (where in Header it can be incomplete)..
> If there is no footer (stream, truncated...) it will still work as usual.
> Tested with a huge set of files and compared old/new ffprobes, it will not change lots of metadata, mainly duration and in some cases start timecode.
> Without this change, especially Duration would be often inaccurate because it is unknown in header and calculated from bitrate.
>
> The new sample files should be added to \fate-suite\mxf, as i do not have an account to upload the files, i shared them on wetransfer:
>
> https://we.tl/t-MVmyG2mZHq
>
> omneon_6.4.1.0.1_xdcam_truncated.mxf
> An original Omneon File from an older Version, file is truncated. It shall prove that Metadata is being parsed even when there is no Footer.
>
> omneon_8.3.0.0_xdcam_startc_footer.mxf
> An original Omneon File from a recent Version with "better" Metadata in Footer than in Header. I needed to hexedit this file and set the MP and SP start timecode in header to 0.
> This test is for proving that metadata from Footer is preferred.
>
> ---
> libavformat/mxfdec.c                      |   2 +-
> tests/fate/mxf.mak                        |  10 +
> tests/ref/fate/mxf-probe-xdcamhd-oit      | 442 ++++++++++++++++++++++
> tests/ref/fate/mxf-probe-xdcamhd-tcfooter | 442 ++++++++++++++++++++++
> 4 files changed, 895 insertions(+), 1 deletion(-)
> create mode 100644 tests/ref/fate/mxf-probe-xdcamhd-oit
> create mode 100644 tests/ref/fate/mxf-probe-xdcamhd-tcfooter
>
> diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
> index 7b40076fb4..a7f552c753 100644
> --- a/libavformat/mxfdec.c
> +++ b/libavformat/mxfdec.c
> @@ -1402,7 +1402,7 @@ static void *mxf_resolve_strong_ref(MXFContext *mxf, UID *strong_ref, enum MXFMe
>
>     if (!strong_ref)
>         return NULL;
> -    for (i = 0; i < mxf->metadata_sets_count; i++) {
> +    for (i = mxf->metadata_sets_count-1; i >= 0; i--) {

Do we have to store all metadata in the first place? Why not do the 
decision which one is better when adding the metadata set? Order of 
parsing depends on the file, we usually do header, footer and then 
backwards the partitions. So after your patch metadata in the second 
partition will have priority over footer, which is also against spec I 
believe.

Regards,
Marton



>         if (!memcmp(*strong_ref, mxf->metadata_sets[i]->uid, 16) &&
>             (type == AnyType || mxf->metadata_sets[i]->type == type)) {
>             return mxf->metadata_sets[i];
> diff --git a/tests/fate/mxf.mak b/tests/fate/mxf.mak
> index 3a1096176f..1b7be46c64 100644
> --- a/tests/fate/mxf.mak
> +++ b/tests/fate/mxf.mak
> @@ -37,6 +37,16 @@ FATE_MXF_PROBE-$(call ENCDEC2, PRORES, PCM_S24LE, MXF) += fate-mxf-probe-applehd
> fate-mxf-probe-applehdr10: SRC = $(TARGET_SAMPLES)/mxf/Meridian-Apple_ProResProxy-HDR10.mxf
> fate-mxf-probe-applehdr10: CMD = run $(PROBE_FORMAT_STREAMS_COMMAND) -i "$(SRC)" | sed -e "s/yuv422p10../yuv422p10/"
>
> +# openincomplete Header, truncated
> +FATE_MXF_PROBE-$(call ENCDEC2, MPEG2VIDEO, PCM_S16LE, MXF) += fate-mxf-probe-xdcamhd-oit
> +fate-mxf-probe-xdcamhd-oit: SRC = $(TARGET_SAMPLES)/mxf/omneon_6.4.1.0.1_xdcam_truncated.mxf
> +fate-mxf-probe-xdcamhd-oit: CMD = run $(PROBE_FORMAT_STREAMS_COMMAND) -i "$(SRC)"
> +
> +# openincomplete Header, starttc in header 0 but Footer MP 10:11:17:21, SP 10:11:17:17
> +FATE_MXF_PROBE-$(call ENCDEC2, MPEG2VIDEO, PCM_S24LE, MXF) += fate-mxf-probe-xdcamhd-tcfooter
> +fate-mxf-probe-xdcamhd-tcfooter: SRC = $(TARGET_SAMPLES)/mxf/omneon_8.3.0.0_xdcam_startc_footer.mxf
> +fate-mxf-probe-xdcamhd-tcfooter: CMD = run $(PROBE_FORMAT_STREAMS_COMMAND) -i "$(SRC)"
> +
> FATE_MXF_REEL_NAME-$(call ENCDEC2, MPEG2VIDEO, PCM_S16LE, MXF) += fate-mxf-reel_name
> fate-mxf-reel_name: $(SAMPLES)/mxf/Sony-00001.mxf
> fate-mxf-reel_name: CMD = md5 -y -i $(TARGET_SAMPLES)/mxf/Sony-00001.mxf  -c copy -timecode 00:00:00:00 -metadata "reel_name=test_reel" -fflags +bitexact -f mxf
> diff --git a/tests/ref/fate/mxf-probe-xdcamhd-oit b/tests/ref/fate/mxf-probe-xdcamhd-oit
> new file mode 100644
> index 0000000000..040a4e0fba
> --- /dev/null
> +++ b/tests/ref/fate/mxf-probe-xdcamhd-oit
> @@ -0,0 +1,442 @@
> +[STREAM]
> +index=0
> +codec_name=mpeg2video
> +profile=0
> +codec_type=video
> +codec_tag_string=[0][0][0][0]
> +codec_tag=0x0000
> +width=1920
> +height=1080
> +coded_width=0
> +coded_height=0
> +closed_captions=0
> +has_b_frames=1
> +sample_aspect_ratio=1:1
> +display_aspect_ratio=16:9
> +pix_fmt=yuv422p
> +level=2
> +color_range=tv
> +color_space=unknown
> +color_transfer=bt709
> +color_primaries=unknown
> +chroma_location=topleft
> +field_order=tt
> +refs=1
> +id=N/A
> +r_frame_rate=25/1
> +avg_frame_rate=25/1
> +time_base=1/25
> +start_pts=0
> +start_time=0.000000
> +duration_ts=6
> +duration=0.240000
> +bit_rate=50000000
> +max_bit_rate=N/A
> +bits_per_raw_sample=N/A
> +nb_frames=N/A
> +nb_read_frames=N/A
> +nb_read_packets=N/A
> +DISPOSITION:default=0
> +DISPOSITION:dub=0
> +DISPOSITION:original=0
> +DISPOSITION:comment=0
> +DISPOSITION:lyrics=0
> +DISPOSITION:karaoke=0
> +DISPOSITION:forced=0
> +DISPOSITION:hearing_impaired=0
> +DISPOSITION:visual_impaired=0
> +DISPOSITION:clean_effects=0
> +DISPOSITION:attached_pic=0
> +DISPOSITION:timed_thumbnails=0
> +DISPOSITION:captions=0
> +DISPOSITION:descriptions=0
> +DISPOSITION:metadata=0
> +DISPOSITION:dependent=0
> +DISPOSITION:still_image=0
> +TAG:file_package_umid=0x060A2B340101010501010D2313003E792039C0579AD9E111BAFB00D028113D2C
> +[SIDE_DATA]
> +side_data_type=CPB properties
> +max_bitrate=50000000
> +min_bitrate=0
> +avg_bitrate=0
> +buffer_size=12484608
> +vbv_delay=-1
> +[/SIDE_DATA]
> +[/STREAM]
> +[STREAM]
> +index=1
> +codec_name=pcm_s24le
> +profile=unknown
> +codec_type=audio
> +codec_tag_string=[0][0][0][0]
> +codec_tag=0x0000
> +sample_fmt=s32
> +sample_rate=48000
> +channels=1
> +channel_layout=unknown
> +bits_per_sample=24
> +id=N/A
> +r_frame_rate=0/0
> +avg_frame_rate=0/0
> +time_base=1/48000
> +start_pts=0
> +start_time=0.000000
> +duration_ts=11596
> +duration=0.241583
> +bit_rate=1152000
> +max_bit_rate=N/A
> +bits_per_raw_sample=24
> +nb_frames=N/A
> +nb_read_frames=N/A
> +nb_read_packets=N/A
> +DISPOSITION:default=0
> +DISPOSITION:dub=0
> +DISPOSITION:original=0
> +DISPOSITION:comment=0
> +DISPOSITION:lyrics=0
> +DISPOSITION:karaoke=0
> +DISPOSITION:forced=0
> +DISPOSITION:hearing_impaired=0
> +DISPOSITION:visual_impaired=0
> +DISPOSITION:clean_effects=0
> +DISPOSITION:attached_pic=0
> +DISPOSITION:timed_thumbnails=0
> +DISPOSITION:captions=0
> +DISPOSITION:descriptions=0
> +DISPOSITION:metadata=0
> +DISPOSITION:dependent=0
> +DISPOSITION:still_image=0
> +TAG:file_package_umid=0x060A2B340101010501010D2313003E792039C0579AD9E111BAFB00D028113D2C
> +[/STREAM]
> +[STREAM]
> +index=2
> +codec_name=pcm_s24le
> +profile=unknown
> +codec_type=audio
> +codec_tag_string=[0][0][0][0]
> +codec_tag=0x0000
> +sample_fmt=s32
> +sample_rate=48000
> +channels=1
> +channel_layout=unknown
> +bits_per_sample=24
> +id=N/A
> +r_frame_rate=0/0
> +avg_frame_rate=0/0
> +time_base=1/48000
> +start_pts=0
> +start_time=0.000000
> +duration_ts=11596
> +duration=0.241583
> +bit_rate=1152000
> +max_bit_rate=N/A
> +bits_per_raw_sample=24
> +nb_frames=N/A
> +nb_read_frames=N/A
> +nb_read_packets=N/A
> +DISPOSITION:default=0
> +DISPOSITION:dub=0
> +DISPOSITION:original=0
> +DISPOSITION:comment=0
> +DISPOSITION:lyrics=0
> +DISPOSITION:karaoke=0
> +DISPOSITION:forced=0
> +DISPOSITION:hearing_impaired=0
> +DISPOSITION:visual_impaired=0
> +DISPOSITION:clean_effects=0
> +DISPOSITION:attached_pic=0
> +DISPOSITION:timed_thumbnails=0
> +DISPOSITION:captions=0
> +DISPOSITION:descriptions=0
> +DISPOSITION:metadata=0
> +DISPOSITION:dependent=0
> +DISPOSITION:still_image=0
> +TAG:file_package_umid=0x060A2B340101010501010D2313003E792039C0579AD9E111BAFB00D028113D2C
> +[/STREAM]
> +[STREAM]
> +index=3
> +codec_name=pcm_s24le
> +profile=unknown
> +codec_type=audio
> +codec_tag_string=[0][0][0][0]
> +codec_tag=0x0000
> +sample_fmt=s32
> +sample_rate=48000
> +channels=1
> +channel_layout=unknown
> +bits_per_sample=24
> +id=N/A
> +r_frame_rate=0/0
> +avg_frame_rate=0/0
> +time_base=1/48000
> +start_pts=0
> +start_time=0.000000
> +duration_ts=11596
> +duration=0.241583
> +bit_rate=1152000
> +max_bit_rate=N/A
> +bits_per_raw_sample=24
> +nb_frames=N/A
> +nb_read_frames=N/A
> +nb_read_packets=N/A
> +DISPOSITION:default=0
> +DISPOSITION:dub=0
> +DISPOSITION:original=0
> +DISPOSITION:comment=0
> +DISPOSITION:lyrics=0
> +DISPOSITION:karaoke=0
> +DISPOSITION:forced=0
> +DISPOSITION:hearing_impaired=0
> +DISPOSITION:visual_impaired=0
> +DISPOSITION:clean_effects=0
> +DISPOSITION:attached_pic=0
> +DISPOSITION:timed_thumbnails=0
> +DISPOSITION:captions=0
> +DISPOSITION:descriptions=0
> +DISPOSITION:metadata=0
> +DISPOSITION:dependent=0
> +DISPOSITION:still_image=0
> +TAG:file_package_umid=0x060A2B340101010501010D2313003E792039C0579AD9E111BAFB00D028113D2C
> +[/STREAM]
> +[STREAM]
> +index=4
> +codec_name=pcm_s24le
> +profile=unknown
> +codec_type=audio
> +codec_tag_string=[0][0][0][0]
> +codec_tag=0x0000
> +sample_fmt=s32
> +sample_rate=48000
> +channels=1
> +channel_layout=unknown
> +bits_per_sample=24
> +id=N/A
> +r_frame_rate=0/0
> +avg_frame_rate=0/0
> +time_base=1/48000
> +start_pts=0
> +start_time=0.000000
> +duration_ts=11596
> +duration=0.241583
> +bit_rate=1152000
> +max_bit_rate=N/A
> +bits_per_raw_sample=24
> +nb_frames=N/A
> +nb_read_frames=N/A
> +nb_read_packets=N/A
> +DISPOSITION:default=0
> +DISPOSITION:dub=0
> +DISPOSITION:original=0
> +DISPOSITION:comment=0
> +DISPOSITION:lyrics=0
> +DISPOSITION:karaoke=0
> +DISPOSITION:forced=0
> +DISPOSITION:hearing_impaired=0
> +DISPOSITION:visual_impaired=0
> +DISPOSITION:clean_effects=0
> +DISPOSITION:attached_pic=0
> +DISPOSITION:timed_thumbnails=0
> +DISPOSITION:captions=0
> +DISPOSITION:descriptions=0
> +DISPOSITION:metadata=0
> +DISPOSITION:dependent=0
> +DISPOSITION:still_image=0
> +TAG:file_package_umid=0x060A2B340101010501010D2313003E792039C0579AD9E111BAFB00D028113D2C
> +[/STREAM]
> +[STREAM]
> +index=5
> +codec_name=pcm_s24le
> +profile=unknown
> +codec_type=audio
> +codec_tag_string=[0][0][0][0]
> +codec_tag=0x0000
> +sample_fmt=s32
> +sample_rate=48000
> +channels=1
> +channel_layout=unknown
> +bits_per_sample=24
> +id=N/A
> +r_frame_rate=0/0
> +avg_frame_rate=0/0
> +time_base=1/48000
> +start_pts=0
> +start_time=0.000000
> +duration_ts=11596
> +duration=0.241583
> +bit_rate=1152000
> +max_bit_rate=N/A
> +bits_per_raw_sample=24
> +nb_frames=N/A
> +nb_read_frames=N/A
> +nb_read_packets=N/A
> +DISPOSITION:default=0
> +DISPOSITION:dub=0
> +DISPOSITION:original=0
> +DISPOSITION:comment=0
> +DISPOSITION:lyrics=0
> +DISPOSITION:karaoke=0
> +DISPOSITION:forced=0
> +DISPOSITION:hearing_impaired=0
> +DISPOSITION:visual_impaired=0
> +DISPOSITION:clean_effects=0
> +DISPOSITION:attached_pic=0
> +DISPOSITION:timed_thumbnails=0
> +DISPOSITION:captions=0
> +DISPOSITION:descriptions=0
> +DISPOSITION:metadata=0
> +DISPOSITION:dependent=0
> +DISPOSITION:still_image=0
> +TAG:file_package_umid=0x060A2B340101010501010D2313003E792039C0579AD9E111BAFB00D028113D2C
> +[/STREAM]
> +[STREAM]
> +index=6
> +codec_name=pcm_s24le
> +profile=unknown
> +codec_type=audio
> +codec_tag_string=[0][0][0][0]
> +codec_tag=0x0000
> +sample_fmt=s32
> +sample_rate=48000
> +channels=1
> +channel_layout=unknown
> +bits_per_sample=24
> +id=N/A
> +r_frame_rate=0/0
> +avg_frame_rate=0/0
> +time_base=1/48000
> +start_pts=0
> +start_time=0.000000
> +duration_ts=11596
> +duration=0.241583
> +bit_rate=1152000
> +max_bit_rate=N/A
> +bits_per_raw_sample=24
> +nb_frames=N/A
> +nb_read_frames=N/A
> +nb_read_packets=N/A
> +DISPOSITION:default=0
> +DISPOSITION:dub=0
> +DISPOSITION:original=0
> +DISPOSITION:comment=0
> +DISPOSITION:lyrics=0
> +DISPOSITION:karaoke=0
> +DISPOSITION:forced=0
> +DISPOSITION:hearing_impaired=0
> +DISPOSITION:visual_impaired=0
> +DISPOSITION:clean_effects=0
> +DISPOSITION:attached_pic=0
> +DISPOSITION:timed_thumbnails=0
> +DISPOSITION:captions=0
> +DISPOSITION:descriptions=0
> +DISPOSITION:metadata=0
> +DISPOSITION:dependent=0
> +DISPOSITION:still_image=0
> +TAG:file_package_umid=0x060A2B340101010501010D2313003E792039C0579AD9E111BAFB00D028113D2C
> +[/STREAM]
> +[STREAM]
> +index=7
> +codec_name=pcm_s24le
> +profile=unknown
> +codec_type=audio
> +codec_tag_string=[0][0][0][0]
> +codec_tag=0x0000
> +sample_fmt=s32
> +sample_rate=48000
> +channels=1
> +channel_layout=unknown
> +bits_per_sample=24
> +id=N/A
> +r_frame_rate=0/0
> +avg_frame_rate=0/0
> +time_base=1/48000
> +start_pts=0
> +start_time=0.000000
> +duration_ts=11596
> +duration=0.241583
> +bit_rate=1152000
> +max_bit_rate=N/A
> +bits_per_raw_sample=24
> +nb_frames=N/A
> +nb_read_frames=N/A
> +nb_read_packets=N/A
> +DISPOSITION:default=0
> +DISPOSITION:dub=0
> +DISPOSITION:original=0
> +DISPOSITION:comment=0
> +DISPOSITION:lyrics=0
> +DISPOSITION:karaoke=0
> +DISPOSITION:forced=0
> +DISPOSITION:hearing_impaired=0
> +DISPOSITION:visual_impaired=0
> +DISPOSITION:clean_effects=0
> +DISPOSITION:attached_pic=0
> +DISPOSITION:timed_thumbnails=0
> +DISPOSITION:captions=0
> +DISPOSITION:descriptions=0
> +DISPOSITION:metadata=0
> +DISPOSITION:dependent=0
> +DISPOSITION:still_image=0
> +TAG:file_package_umid=0x060A2B340101010501010D2313003E792039C0579AD9E111BAFB00D028113D2C
> +[/STREAM]
> +[STREAM]
> +index=8
> +codec_name=pcm_s24le
> +profile=unknown
> +codec_type=audio
> +codec_tag_string=[0][0][0][0]
> +codec_tag=0x0000
> +sample_fmt=s32
> +sample_rate=48000
> +channels=1
> +channel_layout=unknown
> +bits_per_sample=24
> +id=N/A
> +r_frame_rate=0/0
> +avg_frame_rate=0/0
> +time_base=1/48000
> +start_pts=0
> +start_time=0.000000
> +duration_ts=11596
> +duration=0.241583
> +bit_rate=1152000
> +max_bit_rate=N/A
> +bits_per_raw_sample=24
> +nb_frames=N/A
> +nb_read_frames=N/A
> +nb_read_packets=N/A
> +DISPOSITION:default=0
> +DISPOSITION:dub=0
> +DISPOSITION:original=0
> +DISPOSITION:comment=0
> +DISPOSITION:lyrics=0
> +DISPOSITION:karaoke=0
> +DISPOSITION:forced=0
> +DISPOSITION:hearing_impaired=0
> +DISPOSITION:visual_impaired=0
> +DISPOSITION:clean_effects=0
> +DISPOSITION:attached_pic=0
> +DISPOSITION:timed_thumbnails=0
> +DISPOSITION:captions=0
> +DISPOSITION:descriptions=0
> +DISPOSITION:metadata=0
> +DISPOSITION:dependent=0
> +DISPOSITION:still_image=0
> +TAG:file_package_umid=0x060A2B340101010501010D2313003E792039C0579AD9E111BAFB00D028113D2C
> +[/STREAM]
> +[FORMAT]
> +format_name=mxf
> +duration=0.241583
> +bit_rate=59674662
> +TAG:operational_pattern_ul=060e2b34.04010101.0d010201.01010900
> +TAG:uid=8033c057-9ad9-e111-aa7e-00d028113d2c
> +TAG:generation_uid=9433c057-9ad9-e111-96cf-00d028113d2c
> +TAG:company_name=Omneon Inc.
> +TAG:product_name=Omneon Media Subsystem
> +TAG:modification_date=2012-07-29T16:27:51.820000Z
> +TAG:product_version=6.4.1.0.release
> +TAG:product_version_num=6.4.1.0.1
> +TAG:application_platform=Omneon Media Api (mqx)
> +TAG:product_uid=00000000-0000-0010-8000-050e0b010602
> +TAG:material_package_umid=0x060A2B340101010501010D2313001BDF4438C0579AD9E1119C8800D028113D2C
> +TAG:timecode=18:27:53:21
> +[/FORMAT]
> diff --git a/tests/ref/fate/mxf-probe-xdcamhd-tcfooter b/tests/ref/fate/mxf-probe-xdcamhd-tcfooter
> new file mode 100644
> index 0000000000..710cf616b5
> --- /dev/null
> +++ b/tests/ref/fate/mxf-probe-xdcamhd-tcfooter
> @@ -0,0 +1,442 @@
> +[STREAM]
> +index=0
> +codec_name=mpeg2video
> +profile=0
> +codec_type=video
> +codec_tag_string=[0][0][0][0]
> +codec_tag=0x0000
> +width=1920
> +height=1080
> +coded_width=0
> +coded_height=0
> +closed_captions=0
> +has_b_frames=1
> +sample_aspect_ratio=1:1
> +display_aspect_ratio=16:9
> +pix_fmt=yuv422p
> +level=2
> +color_range=tv
> +color_space=bt709
> +color_transfer=bt709
> +color_primaries=bt709
> +chroma_location=topleft
> +field_order=tt
> +refs=1
> +id=N/A
> +r_frame_rate=25/1
> +avg_frame_rate=25/1
> +time_base=1/25
> +start_pts=0
> +start_time=0.000000
> +duration_ts=13
> +duration=0.520000
> +bit_rate=50000000
> +max_bit_rate=N/A
> +bits_per_raw_sample=N/A
> +nb_frames=N/A
> +nb_read_frames=N/A
> +nb_read_packets=N/A
> +DISPOSITION:default=0
> +DISPOSITION:dub=0
> +DISPOSITION:original=0
> +DISPOSITION:comment=0
> +DISPOSITION:lyrics=0
> +DISPOSITION:karaoke=0
> +DISPOSITION:forced=0
> +DISPOSITION:hearing_impaired=0
> +DISPOSITION:visual_impaired=0
> +DISPOSITION:clean_effects=0
> +DISPOSITION:attached_pic=0
> +DISPOSITION:timed_thumbnails=0
> +DISPOSITION:captions=0
> +DISPOSITION:descriptions=0
> +DISPOSITION:metadata=0
> +DISPOSITION:dependent=0
> +DISPOSITION:still_image=0
> +TAG:file_package_umid=0x060A2B340101010501010D231300114B920EA7CA8BBF1B1EAC7100D028113D5C
> +[SIDE_DATA]
> +side_data_type=CPB properties
> +max_bitrate=50000000
> +min_bitrate=0
> +avg_bitrate=0
> +buffer_size=17825792
> +vbv_delay=-1
> +[/SIDE_DATA]
> +[/STREAM]
> +[STREAM]
> +index=1
> +codec_name=pcm_s24le
> +profile=unknown
> +codec_type=audio
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> +DISPOSITION:dub=0
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> +[/STREAM]
> +[STREAM]
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> +[/STREAM]
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> +[/STREAM]
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> +DISPOSITION:default=0
> +DISPOSITION:dub=0
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> +[/STREAM]
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> +nb_read_packets=N/A
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> +[/STREAM]
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> +[/STREAM]
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> +id=N/A
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> +duration=0.520000
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> +nb_read_frames=N/A
> +nb_read_packets=N/A
> +DISPOSITION:default=0
> +DISPOSITION:dub=0
> +DISPOSITION:original=0
> +DISPOSITION:comment=0
> +DISPOSITION:lyrics=0
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> +DISPOSITION:hearing_impaired=0
> +DISPOSITION:visual_impaired=0
> +DISPOSITION:clean_effects=0
> +DISPOSITION:attached_pic=0
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> +DISPOSITION:still_image=0
> +TAG:file_package_umid=0x060A2B340101010501010D231300114B920EA7CA8BBF1B1EAC7100D028113D5C
> +[/STREAM]
> +[STREAM]
> +index=8
> +codec_name=pcm_s24le
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> +codec_type=audio
> +codec_tag_string=[0][0][0][0]
> +codec_tag=0x0000
> +sample_fmt=s32
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> +channels=1
> +channel_layout=unknown
> +bits_per_sample=24
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> +r_frame_rate=0/0
> +avg_frame_rate=0/0
> +time_base=1/48000
> +start_pts=0
> +start_time=0.000000
> +duration_ts=24960
> +duration=0.520000
> +bit_rate=1152000
> +max_bit_rate=N/A
> +bits_per_raw_sample=24
> +nb_frames=N/A
> +nb_read_frames=N/A
> +nb_read_packets=N/A
> +DISPOSITION:default=0
> +DISPOSITION:dub=0
> +DISPOSITION:original=0
> +DISPOSITION:comment=0
> +DISPOSITION:lyrics=0
> +DISPOSITION:karaoke=0
> +DISPOSITION:forced=0
> +DISPOSITION:hearing_impaired=0
> +DISPOSITION:visual_impaired=0
> +DISPOSITION:clean_effects=0
> +DISPOSITION:attached_pic=0
> +DISPOSITION:timed_thumbnails=0
> +DISPOSITION:captions=0
> +DISPOSITION:descriptions=0
> +DISPOSITION:metadata=0
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> +TAG:file_package_umid=0x060A2B340101010501010D231300114B920EA7CA8BBF1B1EAC7100D028113D5C
> +[/STREAM]
> +[FORMAT]
> +format_name=mxf
> +duration=0.520000
> +bit_rate=82212369
> +TAG:operational_pattern_ul=060e2b34.04010101.0d010201.01010900
> +TAG:application_platform=Omneon Media Api (mqx)
> +TAG:uid=6e0aa7ca-8bbf-1b1e-a5b4-00d028113d5c
> +TAG:generation_uid=780aa7ca-8bbf-1b1e-93f8-00d028113d5c
> +TAG:company_name=Omneon Inc.
> +TAG:product_name=Omneon Media Subsystem
> +TAG:modification_date=2021-05-28T08:07:48.620000Z
> +TAG:product_version=8.3.0.0.release
> +TAG:product_version_num=8.3.0.0.1
> +TAG:product_uid=00000000-0000-1000-8000-050e0b010602
> +TAG:material_package_umid=0x060A2B340101010501010D2313009472DE0DA7CA8BBF1B1EB07100D028113D5C
> +TAG:timecode=10:11:17:21
> +[/FORMAT]
> -- 
> 2.17.1
>
> _______________________________________________
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> ffmpeg-devel at ffmpeg.org
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