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• Rtsp streaming with 3gp (Video encoded with ffmpeg) breaking every 8 seconds

  8 août 2012, par user1581063

  I have set up Darwin streaming server(6.0) to stream rtsp on android / other mobile devices in AWS using Ec2.
  I have opened all UDP and necessary tcp ports required for playing RTSP

  I am using ffmpeg to encode videos. Below is the command used for encoding a H264 video to H263.

  ffmpeg -i test1.mp4 -f 3gp -s 176x144 -vcodec h263 -b:v 339k -r 14.895 -acodec libamr_nb -ac 1 -ar 8000 -ab 12.2k -y test.3gp

  The encoded videos stops every multiples of 8 seconds, bufffers and plays again in all Android phone(< 4.0).

  I tried all the options still the behavior is same. The same RTSP link plays well with Daroon player( downloaded from google play) on Android or VLC player in windows.

  I am not able to figure whether its a encoding issue or server side issue.

  Link for the mobile : m.try.vasop.com/rtsp.php

  Link for the RTSP : rtsp ://175.41.130.157/1343973357914_h263.3gp

• The C compiler "clang.exe" is not able to compile a simple test program

  8 octobre 2020, par M. Bilal Asif

  I am trying to compile shell script that compiles the C project library, but i am stuck at this when it comes to compile the nmake part.

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  I am using NDK 21 and cmake version is 3.10

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  I am using shell script using bash same as defined here, i want to compress this library as they showing in the docs running ./android.sh

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  Please check the link : https://github.com/tanersener/mobile-ffmpeg#52-build-scripts

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  here is the attached log :

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  DEBUG: Downloading library source: cpu-features

DEBUG: Checking if cpu-features is already downloaded at /d/Bilals/Projects/GithubProjects/mobile-ffmpeg/src/cpu-features

INFO: cpu-features library already downloaded

INFO: cpu-features already downloaded. Source folder found at /d/Bilals/Projects/GithubProjects/mobile-ffmpeg/src/cpu-features

-- Building for: NMake Makefiles
-- Check for working C compiler: D:/Bilals/PcBackupData/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/windows-x86_64/bin/clang.exe
CMake Error: Generator: execution of make failed. Make command was: "nmake" "/NOLOGO" "cmTC_adf3f\fast"
-- Check for working C compiler: D:/Bilals/PcBackupData/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/windows-x86_64/bin/clang.exe -- broken
CMake Error at D:/Bilals/PcBackupData/sdk/cmake/3.10.2.4988404/share/cmake-3.10/Modules/CMakeTestCCompiler.cmake:52 (message):
  The C compiler

    "D:/Bilals/PcBackupData/sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/windows-x86_64/bin/clang.exe"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: D:/Bilals/Projects/GithubProjects/mobile-ffmpeg/android/build/cpu-features/arm/CMakeFiles/CMakeTmp
    
    Run Build Command:"nmake" "/NOLOGO" "cmTC_adf3f\fast"
    The system cannot find the file specified
    Generator: execution of make failed. Make command was: "nmake" "/NOLOGO" "cmTC_adf3f\fast"
    

  

  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:9 (project)


-- Configuring incomplete, errors occurred!
See also "D:/Bilals/Projects/GithubProjects/mobile-ffmpeg/android/build/cpu-features/arm/CMakeFiles/CMakeOutput.log".
See also "D:/Bilals/Projects/GithubProjects/mobile-ffmpeg/android/build/cpu-features/arm/CMakeFiles/CMakeError.log".


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  and here is my environmental variables

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• avformat/mpegts : make sure mpegts_read_header always stops at the first pmt

  15 novembre 2020, par Marton Balint

  avformat/mpegts : make sure mpegts_read_header always stops at the first pmt
  mpegts_read_header stops parsing the file at the first PMT. However the check
  
  that ensured this was wrong because streams can also be added before the first
  
  PMT is received (e.g. EIT).
  So let's make sure we are in the header reading phase by checking if ts->pkt is
  
  unset instead of checking if the number of streams found so far is 0.
  Signed-off-by : Marton Balint <cus@passwd.hu>
  

  • [DH] libavformat/mpegts.c