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The pirate bay depuis la Belgique
1er avril 2013, par
Mis à jour : Avril 2013
Langue : français
Type : Image
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Sur d’autres sites (8084)
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ffmpeg "End mismatch 1" warning, jpeg2000 to avi
11 avril 2023, par jklebesTrying to convert a directory of jpeg2000 grayscale images to a video with ffmpeg, I get warnings


[0;36m[jpeg2000 @ 0x55d8fa1b68c0] [0m[0;33mEnd mismatch 1


(and lots of


Last message repeated <n> times
</n>

)


The command was


ffmpeg -y -r 10 -start_number 1 -i <path>/surface_30///img_000%01d.jp2 -vcodec msmpeg4 -vf scale=1920:-1 -q:v 8 <path>//surface_30///surface_30.avi
</path></path>

The output is


ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
 built with gcc 7.3.0 (crosstool-NG 1.23.0.449-a04d0)
 configuration: --prefix=/home/jklebes001/miniconda3 --cc=/tmp/build/80754af9/ffmpeg_1587154242452/_build_env/bin/x86_64-conda_cos6-linux-gnu-cc --disable-doc --enable-avresample --enable-gmp --enable-hardcoded-tables --enable-libfreetype --enable-libvpx --enable-pthreads --enable-libopus --enable-postproc --enable-pic --enable-pthreads --enable-shared --enable-static --enable-version3 --enable-zlib --enable-libmp3lame --disable-nonfree --enable-gpl --enable-gnutls --disable-openssl --enable-libopenh264 --enable-libx264
 libavutil 56. 31.100 / 56. 31.100
 libavcodec 58. 54.100 / 58. 54.100
 libavformat 58. 29.100 / 58. 29.100
 libavdevice 58. 8.100 / 58. 8.100
 libavfilter 7. 57.100 / 7. 57.100
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 5.100 / 5. 5.100
 libswresample 3. 5.100 / 3. 5.100
 libpostproc 55. 5.100 / 55. 5.100
[0;36m[jpeg2000 @ 0x55cb44144480] [0m[0;33mEnd mismatch 1

[0m Last message repeated 1 times
 Last message repeated 2 times
 Last message repeated 3 times


...


Last message repeated 73 times

Input #0, image2, from '<path>//surface_30///img_000%01d.jp2':

 Duration: 00:00:00.20, start: 0.000000, bitrate: N/A

 Stream #0:0: Video: jpeg2000, gray, 6737x4869, 25 tbr, 25 tbn, 25 tbc

Stream mapping:

 Stream #0:0 -> #0:0 (jpeg2000 (native) -> msmpeg4v3 (msmpeg4))

Press [q] to stop, [?] for help

[0;36m[jpeg2000 @ 0x55cb4418e200] [0m[0;33mEnd mismatch 1

[0m[0;36m[jpeg2000 @ 0x55cb441900c0] [0m[0;33mEnd mismatch 1
</path>

...


(about 600 lines of "end mismatch" and "last message repeated" cut)


...


[0m[0;36m[jpeg2000 @ 0x55cb4418e8c0] [0m[0;33mEnd mismatch 1

[0mOutput #0, avi, to '<path>/surface_30///surface_30.avi':

 Metadata:

 ISFT : Lavf58.29.100

 Stream #0:0: Video: msmpeg4v3 (msmpeg4) (MP43 / 0x3334504D), yuv420p, 1920x1388, q=2-31, 200 kb/s, 10 fps, 10 tbn, 10 tbc

 Metadata:

 encoder : Lavc58.54.100 msmpeg4

 Side data:

 cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1

frame= 2 fps=0.8 q=8.0 size= 6kB time=00:00:00.20 bitrate= 227.1kbits/s speed=0.0844x 
frame= 5 fps=1.7 q=8.0 size= 6kB time=00:00:00.50 bitrate= 90.8kbits/s speed=0.172x 
frame= 5 fps=1.7 q=8.0 Lsize= 213kB time=00:00:00.50 bitrate=3494.7kbits/s speed=0.172x 
video:208kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.732246%
</path>

What is the meaning of characters like [0 ;33m here ?


I thought it might have something to do with bit depth and color format. Setting
-pix_fmt grayhad no effect, and indeed the format of the jp2 images is already detected as 8-bit gray.

The output .avi exists and seems fine.


The line was previously used on jpeg files and works fine on jpeg. With jpeg, the output has the line


Input #0, image2, from '<path>/surface_30///img_000%01d.jpeg':

 Duration: 00:00:00.16, start: 0.000000, bitrate: N/A

 Stream #0:0: Video: mjpeg (Baseline), gray(bt470bg/unknown/unknown), 6737x4869 [SAR 1:1 DAR 6737:4869], 25 tbr, 25 tbn, 25 tbc

Stream mapping:

 Stream #0:0 -> #0:0 (mjpeg (native) -> msmpeg4v3 (msmpeg4))

Press [q] to stop, [?] for help

Output #0, avi, to '<path>/surface_30///surface_30.avi':

 Metadata:

 ISFT : Lavf58.29.100

 Stream #0:0: Video: msmpeg4v3 (msmpeg4) (MP43 / 0x3334504D), yuv420p, 6737x4869 [SAR 1:1 DAR 6737:4869], q=2-31, 200 kb/s, 10 fps, 10 tbn, 10 tbc

 Metadata:

 encoder : Lavc58.54.100 msmpeg4

 Side data:

 cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1

frame= 2 fps=0.0 q=8.0 size= 6662kB time=00:00:00.20 bitrate=272859.9kbits/s speed=0.334x 
frame= 3 fps=2.2 q=10.0 size= 10502kB time=00:00:00.30 bitrate=286764.2kbits/s speed=0.22x 
frame= 4 fps=1.9 q=12.3 size= 13574kB time=00:00:00.40 bitrate=277987.7kbits/s speed=0.19x 
frame= 4 fps=1.4 q=12.3 size= 13574kB time=00:00:00.40 bitrate=277987.7kbits/s speed=0.145x 
frame= 4 fps=1.4 q=12.3 Lsize= 13657kB time=00:00:00.40 bitrate=279702.3kbits/s speed=0.145x 
video:13652kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.041926%
</path></path>

detecting mjpeg format and similar, but more detailed format
gray(bt470bg/unknown/unknown), 6737x4869 [SAR 1:1 DAR 6737:4869].

What is the difference when switching input to jp2 ?


-
Revision 29902 : - mise à jour de l’appel des #SAISIE (celles qui risquent un plantage en ...
16 juillet 2009, par marcimat@… — Log
mise à jour de l’appel des #SAISIE (celles qui risquent un plantage en priorité)
mise à jour du plugin.xml -
FFmpeg.Autogen : Issue with Zero-Sized Atom Boxes in MP4 Output
16 juin 2024, par Alexander JanssonI just started learning ffmpeg using ffmpeg.autogen wrapper version 5.1 in c#, and ffmpeg shared libs version 5.1. Im trying to facilitate a class which screenrecords using gdigrab and produces streamable mp4 to a/an buffer/event. Everything seems to work as suposed to with no error except that the outputstream produces atom boxes with 0 in size thus small file size aswell, no data seems to be produced in the boxes, the "debug test mp4 file" is analyzed with MP4Box and the box info is provided in the thread.


To be more specific why does this code produce empty atomboxes, is someone able to make the data produced actually contain any frame data from the gdigrab editing my code ?


`code :


public unsafe class ScreenStreamer : IDisposable
 {
 private readonly AVCodec* productionCodec;
 private readonly AVCodec* screenCaptureAVCodec;
 private readonly AVCodecContext* productionAVCodecContext;
 private readonly AVFormatContext* productionFormatContext;
 private readonly AVCodecContext* screenCaptureAVCodecContext;
 private readonly AVDictionary* productionAVCodecOptions;
 private readonly AVInputFormat* screenCaptureInputFormat;
 private readonly AVFormatContext* screenCaptureInputFormatContext;
 private readonly int gDIGrabVideoStreamIndex;
 private readonly System.Drawing.Size screenBounds;
 private readonly int _produceAtleastAmount;
 public EventHandler OnNewVideoDataProduced;
 private MemoryStream unsafeToManagedBridgeBuffer;
 private CancellationTokenSource cancellationTokenSource;
 private Task recorderTask;

 public ScreenStreamer(int fps, int bitrate, int screenIndex, int produceAtleastAmount = 1000)
 {
 ffmpeg.avdevice_register_all();
 ffmpeg.avformat_network_init();
 recorderTask = Task.CompletedTask;
 cancellationTokenSource = new CancellationTokenSource();
 unsafeToManagedBridgeBuffer = new MemoryStream();
 _produceAtleastAmount = produceAtleastAmount;

 // Allocate and initialize production codec and context
 productionCodec = ffmpeg.avcodec_find_encoder(AVCodecID.AV_CODEC_ID_H264);
 if (productionCodec == null) throw new ApplicationException("Could not find encoder for codec ID H264.");

 productionAVCodecContext = ffmpeg.avcodec_alloc_context3(productionCodec);
 if (productionAVCodecContext == null) throw new ApplicationException("Could not allocate video codec context.");

 // Set codec parameters
 screenBounds = RetrieveScreenBounds(screenIndex);
 productionAVCodecContext->width = screenBounds.Width;
 productionAVCodecContext->height = screenBounds.Height;
 productionAVCodecContext->time_base = new AVRational() { den = fps, num = 1 };
 productionAVCodecContext->pix_fmt = AVPixelFormat.AV_PIX_FMT_YUV420P;
 productionAVCodecContext->bit_rate = bitrate;

 int result = ffmpeg.av_opt_set(productionAVCodecContext->priv_data, "preset", "veryfast", 0);
 if (result != 0)
 {
 throw new ApplicationException($"Failed to set options with error code {result}.");
 }

 // Open codec
 fixed (AVDictionary** pm = &productionAVCodecOptions)
 {
 result = ffmpeg.av_dict_set(pm, "movflags", "frag_keyframe+empty_moov+default_base_moof", 0);
 if (result < 0)
 {
 throw new ApplicationException($"Failed to set dictionary with error code {result}.");
 }

 result = ffmpeg.avcodec_open2(productionAVCodecContext, productionCodec, pm);
 if (result < 0)
 {
 throw new ApplicationException($"Failed to open codec with error code {result}.");
 }
 }

 // Allocate and initialize screen capture codec and context
 screenCaptureInputFormat = ffmpeg.av_find_input_format("gdigrab");
 if (screenCaptureInputFormat == null) throw new ApplicationException("Could not find input format gdigrab.");

 fixed (AVFormatContext** ps = &screenCaptureInputFormatContext)
 {
 result = ffmpeg.avformat_open_input(ps, "desktop", screenCaptureInputFormat, null);
 if (result < 0)
 {
 throw new ApplicationException($"Failed to open input with error code {result}.");
 }

 result = ffmpeg.avformat_find_stream_info(screenCaptureInputFormatContext, null);
 if (result < 0)
 {
 throw new ApplicationException($"Failed to find stream info with error code {result}.");
 }
 }

 gDIGrabVideoStreamIndex = -1;
 for (int i = 0; i < screenCaptureInputFormatContext->nb_streams; i++)
 {
 if (screenCaptureInputFormatContext->streams[i]->codecpar->codec_type == AVMediaType.AVMEDIA_TYPE_VIDEO)
 {
 gDIGrabVideoStreamIndex = i;
 break;
 }
 }

 if (gDIGrabVideoStreamIndex < 0)
 {
 throw new ApplicationException("Failed to find video stream in input.");
 }

 AVCodecParameters* codecParameters = screenCaptureInputFormatContext->streams[gDIGrabVideoStreamIndex]->codecpar;
 screenCaptureAVCodec = ffmpeg.avcodec_find_decoder(codecParameters->codec_id);
 if (screenCaptureAVCodec == null)
 {
 throw new ApplicationException("Could not find decoder for screen capture.");
 }

 screenCaptureAVCodecContext = ffmpeg.avcodec_alloc_context3(screenCaptureAVCodec);
 if (screenCaptureAVCodecContext == null)
 {
 throw new ApplicationException("Could not allocate screen capture codec context.");
 }

 result = ffmpeg.avcodec_parameters_to_context(screenCaptureAVCodecContext, codecParameters);
 if (result < 0)
 {
 throw new ApplicationException($"Failed to copy codec parameters to context with error code {result}.");
 }

 result = ffmpeg.avcodec_open2(screenCaptureAVCodecContext, screenCaptureAVCodec, null);
 if (result < 0)
 {
 throw new ApplicationException($"Failed to open screen capture codec with error code {result}.");
 }
 }

 public void Start()
 {
 recorderTask = Task.Run(() =>
 {
 AVPacket* packet = ffmpeg.av_packet_alloc();
 AVFrame* rawFrame = ffmpeg.av_frame_alloc();
 AVFrame* compatibleFrame = null;
 byte* dstBuffer = null;

 try
 {
 while (!cancellationTokenSource.Token.IsCancellationRequested)
 {
 if (ffmpeg.av_read_frame(screenCaptureInputFormatContext, packet) >= 0)
 {
 if (packet->stream_index == gDIGrabVideoStreamIndex)
 {
 int response = ffmpeg.avcodec_send_packet(screenCaptureAVCodecContext, packet);
 if (response < 0)
 {
 throw new ApplicationException($"Error while sending a packet to the decoder: {response}");
 }

 response = ffmpeg.avcodec_receive_frame(screenCaptureAVCodecContext, rawFrame);
 if (response == ffmpeg.AVERROR(ffmpeg.EAGAIN) || response == ffmpeg.AVERROR_EOF)
 {
 continue;
 }
 else if (response < 0)
 {
 throw new ApplicationException($"Error while receiving a frame from the decoder: {response}");
 }

 compatibleFrame = ConvertToCompatiblePixelFormat(rawFrame, out dstBuffer);

 response = ffmpeg.avcodec_send_frame(productionAVCodecContext, compatibleFrame);
 if (response < 0)
 {
 throw new ApplicationException($"Error while sending a frame to the encoder: {response}");
 }

 while (response >= 0)
 {
 response = ffmpeg.avcodec_receive_packet(productionAVCodecContext, packet);
 if (response == ffmpeg.AVERROR(ffmpeg.EAGAIN) || response == ffmpeg.AVERROR_EOF)
 {
 break;
 }
 else if (response < 0)
 {
 throw new ApplicationException($"Error while receiving a packet from the encoder: {response}");
 }

 using var packetStream = new UnmanagedMemoryStream(packet->data, packet->size);
 packetStream.CopyTo(unsafeToManagedBridgeBuffer);
 byte[] managedBytes = unsafeToManagedBridgeBuffer.ToArray();
 OnNewVideoDataProduced?.Invoke(this, managedBytes);
 unsafeToManagedBridgeBuffer.SetLength(0);
 }
 }
 }
 ffmpeg.av_packet_unref(packet);
 ffmpeg.av_frame_unref(rawFrame);
 if (compatibleFrame != null)
 {
 ffmpeg.av_frame_unref(compatibleFrame);
 ffmpeg.av_free(dstBuffer);
 }
 }
 }
 finally
 {
 ffmpeg.av_packet_free(&packet);
 ffmpeg.av_frame_free(&rawFrame);
 if (compatibleFrame != null)
 {
 ffmpeg.av_frame_free(&compatibleFrame);
 }
 }
 });
 }

 public AVFrame* ConvertToCompatiblePixelFormat(AVFrame* srcFrame, out byte* dstBuffer)
 {
 AVFrame* dstFrame = ffmpeg.av_frame_alloc();
 int buffer_size = ffmpeg.av_image_get_buffer_size(productionAVCodecContext->pix_fmt, productionAVCodecContext->width, productionAVCodecContext->height, 1);
 byte_ptrArray4 dstData = new byte_ptrArray4();
 int_array4 dstLinesize = new int_array4();
 dstBuffer = (byte*)ffmpeg.av_malloc((ulong)buffer_size);
 ffmpeg.av_image_fill_arrays(ref dstData, ref dstLinesize, dstBuffer, productionAVCodecContext->pix_fmt, productionAVCodecContext->width, productionAVCodecContext->height, 1);

 dstFrame->format = (int)productionAVCodecContext->pix_fmt;
 dstFrame->width = productionAVCodecContext->width;
 dstFrame->height = productionAVCodecContext->height;
 dstFrame->data.UpdateFrom(dstData);
 dstFrame->linesize.UpdateFrom(dstLinesize);

 SwsContext* swsCtx = ffmpeg.sws_getContext(
 srcFrame->width, srcFrame->height, (AVPixelFormat)srcFrame->format,
 productionAVCodecContext->width, productionAVCodecContext->height, productionAVCodecContext->pix_fmt,
 ffmpeg.SWS_BILINEAR, null, null, null);

 if (swsCtx == null)
 {
 throw new ApplicationException("Could not initialize the conversion context.");
 }

 ffmpeg.sws_scale(swsCtx, srcFrame->data, srcFrame->linesize, 0, srcFrame->height, dstFrame->data, dstFrame->linesize);
 ffmpeg.sws_freeContext(swsCtx);
 return dstFrame;
 }

 private System.Drawing.Size RetrieveScreenBounds(int screenIndex)
 {
 return new System.Drawing.Size(1920, 1080);
 }

 public void Dispose()
 {
 cancellationTokenSource?.Cancel();
 recorderTask?.Wait();
 cancellationTokenSource?.Dispose();
 recorderTask?.Dispose();
 unsafeToManagedBridgeBuffer?.Dispose();

 fixed (AVCodecContext** p = &productionAVCodecContext)
 {
 if (*p != null)
 {
 ffmpeg.avcodec_free_context(p);
 }
 }
 fixed (AVCodecContext** p = &screenCaptureAVCodecContext)
 {
 if (*p != null)
 {
 ffmpeg.avcodec_free_context(p);
 }
 }

 if (productionFormatContext != null)
 {
 ffmpeg.avformat_free_context(productionFormatContext);
 }

 if (screenCaptureInputFormatContext != null)
 {
 ffmpeg.avformat_free_context(screenCaptureInputFormatContext);
 }

 if (productionAVCodecOptions != null)
 {
 fixed (AVDictionary** p = &productionAVCodecOptions)
 {
 ffmpeg.av_dict_free(p);
 }
 }
 }
 }


I call Start method and wait 8 econds, out of scope I write the bytes to an mp4 file without using the write trailer just to debug the atomboxes. and the mp4 debugging box output I got :


(Full OUTPUT)
https://pastebin.com/xkM4MfG7



(Not full)




"
<boxes>
<uuidbox size="0" type="uuid" uuid="{00000000-00000000-00000000-00000000}" specification="unknown" container="unknown">
</uuidbox>
<trackreferencetypebox size="0" type="cdsc" specification="p12" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="hint" specification="p12" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="font" specification="p12" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="hind" specification="p12" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="vdep" specification="p12" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="vplx" specification="p12" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="subt" specification="p12" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="thmb" specification="p12" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="mpod" specification="p14" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="dpnd" specification="p14" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="sync" specification="p14" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="ipir" specification="p14" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="sbas" specification="p15" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="scal" specification="p15" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="tbas" specification="p15" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="sabt" specification="p15" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="oref" specification="p15" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="adda" specification="p12" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="adrc" specification="p12" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="iloc" specification="p12" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="avcp" specification="p15" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="swto" specification="p15" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="swfr" specification="p15" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="chap" specification="apple" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="tmcd" specification="apple" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="cdep" specification="apple" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="scpt" specification="apple" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="ssrc" specification="apple" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<trackreferencetypebox size="0" type="lyra" specification="apple" container="tref">
<trackreferenceentry trackid=""></trackreferenceentry>
</trackreferencetypebox>
<itemreferencebox size="0" type="tbas" specification="p12" container="iref">
<itemreferenceboxentry itemid=""></itemreferenceboxentry>
</itemreferencebox>
<itemreferencebox size="0" type="iloc" specification="p12" container="iref">
<itemreferenceboxentry itemid=""></itemreferenceboxentry>
</itemreferencebox>
<itemreferencebox size="0" type="fdel" specification="p12" container="iref">
<itemreferenceboxentry itemid=""></itemreferenceboxentry>
</itemreferencebox>
<samplegroupdescriptionbox size="0" type="sgpd" version="0" flags="0" specification="p12" container="stbl traf">
<rollrecoveryentry></rollrecoveryentry>
</samplegroupdescriptionbox>
<samplegroupdescriptionbox size="0" type="sgpd" version="0" flags="0" specification="p12" container="stbl traf">
<audioprerollentry></audioprerollentry>
</samplegroupdescriptionbox>
<samplegroupdescriptionbox size="0" type="sgpd" version="0" flags="0" specification="p12" container="stbl traf">
<visualrandomaccessentry></visualrandomaccessentry>
</samplegroupdescriptionbox>
<samplegroupdescriptionbox size="0" type="sgpd" version="0" flags="0" specification="p15" container="stbl traf">
<cencsampleencryptiongroupentry isencrypted="" kid=""></cencsampleencryptiongroupentry>
</samplegroupdescriptionbox>
<samplegroupdescriptionbox size="0" type="sgpd" version="0" flags="0" specification="p15" container="stbl traf">
<operatingpointsinformation>
 <profiletierlevel></profiletierlevel>
<operatingpoint minpicwidth="" minpicheight="" maxpicwidth="" maxpicheight="" maxchromaformat="" maxbitdepth="" avgframerate="" constantframerate="" maxbitrate="" avgbitrate=""></operatingpoint>

</operatingpointsinformation>
</samplegroupdescriptionbox>
<samplegroupdescriptionbox size="0" type="sgpd" version="0" flags="0" specification="p15" container="stbl traf">
<layerinformation>
<layerinfoitem></layerinfoitem>
</layerinformation>
</samplegroupdescriptionbox>
<samplegroupdescriptionbox size="0" type="sgpd" version="0" flags="0" specification="p15" container="stbl traf">
<tileregiongroupentry tilegroup="" independent="" x="" y="" w="" h="">
<tileregiondependency tileid=""></tileregiondependency>
</tileregiongroupentry>
</samplegroupdescriptionbox>
<samplegroupdescriptionbox size="0" type="sgpd" version="0" flags="0" specification="p15" container="stbl traf">
<nalumap rle="">
<nalumapentry groupid=""></nalumapentry>
</nalumap>
</samplegroupdescriptionbox>
<samplegroupdescriptionbox size="0" type="sgpd" version="0" flags="0" specification="p12" container="stbl traf">
<temporallevelentry></temporallevelentry>
</samplegroupdescriptionbox>
<samplegroupdescriptionbox size="0" type="sgpd" version="0" flags="0" specification="p12" container="stbl traf">
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