Here is a simple test case:
1) Use the live555 RTSP server to serve a 24 bit wav file.
2) Play this file using ffplay as follows:
$ ffplay rtsp://<ip address>/audio.wav
In this case, ffplay fails as follows:
[ta@bonsai ~]$ ffplay rtsp://10.2.1.21:8554/wave
ffplay version 3.2 Copyright (c) 2003-2016 the FFmpeg developers
built with gcc 6.2.1 (GCC) 20160830
configuration: --prefix=/usr --disable-debug --disable-static
--disable-stripping --enable-avisynth --enable-avresample
--enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl
--enable-ladspa --enable-libass --enable-libbluray --enable-libfreetype
--enable-libfribidi --enable-libgsm --enable-libiec61883
--enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb
--enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus
--enable-libpulse --enable-libschroedinger --enable-libsoxr
--enable-libspeex --enable-libssh --enable-libtheora --enable-libv4l2
--enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp
--enable-libx264 --enable-libx265 --enable-libxvid --enable-netcdf
--enable-shared --enable-version3 --enable-x11grab
libavutil 55. 34.100 / 55. 34.100
libavcodec 57. 64.100 / 57. 64.100
libavformat 57. 56.100 / 57. 56.100
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
[rtsp @ 0x7fddbc000920] Could not find codec parameters for stream 0
(Audio: none, 96000 Hz, 2 channels): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize'
options
Input #0, rtsp, from 'rtsp://10.2.1.21:8554/wave':
Metadata:
title : wave
comment : wave
Duration: 00:10:00.00, start: 0.001250, bitrate: N/A
Stream #0:0: Audio: none, 96000 Hz, 2 channels
No codec could be found with id 0
Failed to open file 'rtsp://10.2.1.21:8554/wave' or configure filtergraph
--
Timur
On 11/5/2016 11:49 AM, Michael Niedermayer wrote:
On Sat, Nov 05, 2016 at 01:15:44AM +0300, Timur Aydin wrote:
Hello guys,
When ffplay is used to play from the RTSP URL that serves 24 bit
audio content, ffplay fails to recognize the audio codec format. The
attached patch adds support for playing 24 bit audio content over
RTSP by defining a dynamic payload handler for "L24".
do you have a testcase for this ?
[...]
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