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8th February 2013, 22:17 | #1 | Link |
Doom9ing since 2001
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H.264 bitstream analyzer
Any recommendations for H.264 bitstream analysis tools?
I'm looking for something that will tell me for each coded frame its type (IDR, I, P, B), compressed size, quantizer level, SPS/PPS/slice header info, and VUI/SEI metadata if available. And if it can dump all that info into a CSV, that'd be awesome. Free or commercial, though free is always nice. |
8th February 2013, 23:08 | #2 | Link |
Software Developer
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Elecard StreamEye:
http://www.elecard.com/en/products/p...streameye.html CodecVisa (formerly H264Visa): http://www.codecian.com/downloads.html These come to my mind. I don't know if any of them has a CSV export function though...
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9th February 2013, 03:08 | #3 | Link |
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I have something cheap and simple (command prompt only). It will do most of the things you mention, but not quant levels.
http://www.w6rz.net/h264_parse.zip Ron
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9th February 2013, 06:53 | #4 | Link |
Derek Prestegard IRL
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Elecard is decent for basic stuff. I'm looking into purchasing Interra Vega, but we'll see if that makes it into my budget
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10th February 2013, 04:38 | #6 | Link |
Derek Prestegard IRL
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A major broadcasting company. We're looking into Vega for its deep support for a wide variety of containers and video essences, including broadcast specific stuff like Closed Captions.
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10th February 2013, 21:39 | #7 | Link |
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For simple, high-level information dumped to file, I can't help wondering if the most suitable thing is an instrumented decoder. Take the reference decoder, add some prints to stdout and you're done. Could take someone familiar with the standard and JM less than a day.
Quantizer level is a tricky one... Qp can vary throughout the frame so you need to derive and report some sort of picture average for Y, Cr and Cb. This implies deeper decoding than just looking at headers. If this was a question about HEVC, I could help zambelli with some commercial software or at least a trial .
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12th February 2013, 00:23 | #8 | Link |
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Hey Alex!
This is what I've been using: Tektronix MTS4SA It's what I inherited, so I didn't do a big comparison, but it does everything you're asking about, and more. About the complete opposite of free, though ! Last edited by benwaggoner; 12th February 2013 at 00:25. Reason: Left out the link |
28th August 2014, 11:50 | #9 | Link |
German doom9/Gleitz SuMo
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I just wonder if LAV Filters/Splitters expose useful data about video streams, or if a fork would help creating some statistical tool based on them, to report details beyond MediaInfo's header analysis, e.g. GOP length distrubution...
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28th August 2014, 12:13 | #10 | Link |
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They just use ffmpeg for parsing and decoding, if you want any extra information, use ffmpeg directly and/or fork it to expose internal information.
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LAV Filters - open source ffmpeg based media splitter and decoders |
1st September 2014, 14:20 | #13 | Link | |
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Quote:
Not sure about ffprobe capabilities - typical data are relatively easy to access but more complex? For example - basic info works nicely: @ffprobe -v quiet -pretty -print_format json -show_entries "format=size,bit_rate:frame=coded_picture_number,pkt_pts_time,pkt_pts,pkt_dts_time,pkt_dts,pkt_duration_time,pict_type,interlaced_frame,top_field_first,repeat_pict,width,height,sample_aspect_ratio,display_aspect_ratio,r_frame_rate,avg_frame_rate,time_base,pkt_size" -select_streams v:0 %1 > %1.json provide this as a result { "pkt_pts": 0, "pkt_pts_time": "0:00:00.000000", "pkt_dts": 0, "pkt_dts_time": "0:00:00.000000", "pkt_duration_time": "0:00:00.040000", "pkt_size": "116620", "width": 1920, "height": 1080, "pict_type": "I", "coded_picture_number": 0, "interlaced_frame": 0, "top_field_first": 0, "repeat_pict": 0 }, But not more... Perhaps some analyzer can be build around ffprobe (ffmpeg)... |
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7th September 2014, 01:34 | #14 | Link |
Retried Guesser
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Expanding on pandy's post above, here an ffprobe report in CSV format, suitable for importing into a spreadsheet:
Save as <something>.bat, then drag your media file on it to generate the report: Code:
@echo off :: ***** set path to ffprobe.exe if required ***** set FPROB="ffprobe.exe" @echo entry,media_type,key_frame,pkt_pts,pkt_pts_time,pkt_dts,pkt_dts_time,best_effort_timestamp,^ best_effort_timestamp_time,pkt_duration,pkt_duration_time,pkt_pos,pkt_size,^ width,height,pix_fmt,sample_aspect_ratio,pict_type,coded_picture_number,^ display_picture_number,interlaced_frame,top_field_first,repeat_pict > "%~dpn1-ffdump.csv" %FPROB% -select_streams v -print_format csv -show_entries frame "%~dpnx1" >> "%~dpn1-ffdump.csv" if errorlevel 1 pause exit 0 http://forum.doom9.org/showthread.ph...97#post1692797 Last edited by raffriff42; 8th September 2014 at 06:15. |
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