Re: [Libav-user] Encoding/Decoding Audio

nd 'probesize' options \\audio_out.pcm: could not find codec parameters Input #0, aac, from '\\audio_out.pcm': Duration: 00:00:11.94, bitrate: 1535 kb/s Stream #0:0: Audio: aac, 4.0, fltp, 1535 kb/s At least one output file must be specified On Mon, Jan 23, 2017 at 8:04 PM, Steve Myers <musicspee

Re: [Libav-user] Encoding/Decoding Audio

> On Jan 23, 2017, at 5:38 PM, Cesareo Fernandez wrote: > > I have been attempting to use the ffmpeg libraries to take as input a RTMP > stream consisting of a video stream and an audio stream, and decode the > respective streams in order to push the contents out to a

[Libav-user] failing decoding with certain wma files

I'm trying to build a small universal audio decoding library that decodes the file a frame at a time (on Android platform). I've built a command line static ffmpeg that I can exec that works on every file format I have tested. Now I am trying to build a shared library version, so I can directly

[Libav-user] Samples of silence after a av_seek_frame

I'm using ffmpeg audio decoding to create a gapless audio loop. I call av_seek_frame (with AVSEEK_FLAG_BACKWARD) to seek to my desired time, and call avcode_flush_buffers after. It seems the first decoded frame in the audio stream after the seek contains a few samples of silence or near silence,

Re: [Libav-user] Samples of silence after a av_seek_frame

Yeah I'm rolling it back 2048 samples (arbitrary) from where I want to seek to and then dropping those extra samples and it is working now. Still odd though. On Sep 11, 2016 6:24 PM, "Christopher Snowhill" wrote: > > > On 9/11/16 12:30 PM, Steve wrote: > > Steve wrote > >>

Re: [Libav-user] how to enable mpegaudio when run configure

Sorry I think ---enable-demuxer=mp3 --enable-decoder=mp1,mp2,mp3,mp3adu On Wed, Oct 26, 2016 at 11:00 AM, Steve Myers <musicspeedchan...@gmail.com> wrote: > I think > > ---enable-demuxer=mp3 > --enable-decoder=mp1,mp2,mp3adu > > On Wed, Oct 26, 2016 at 10:53 AM,

Re: [Libav-user] how to enable mpegaudio when run configure

Do you have demuxer and parser too? On Oct 26, 2016 8:10 AM, "Diaz Soho" wrote: > Hi all, > > when I enable decoder "mp3", the mpegaudio does not enabled. And in > advance, I check that it seems dependence DCT. I do not set > "--disable-dct", the CONFIG_DCT is 0 always.

Re: [Libav-user] how to enable mpegaudio when run configure

I think ---enable-demuxer=mp3 --enable-decoder=mp1,mp2,mp3adu On Wed, Oct 26, 2016 at 10:53 AM, Carl Eugen Hoyos wrote: > 2016-10-26 14:02 GMT+02:00 Diaz Soho : > > > when I enable decoder "mp3", the mpegaudio does not enabled. > > And in advance, I

Re: [Libav-user] AVStream::codec deprecated, but example uses it?

On Tue, Oct 25, 2016 at 10:32 AM, Jason C wrote: > In 3.1.5 it appears that AVStream::codec is deprecated: > > /** > * @deprecated use the codecpar struct instead > */ > attribute_deprecated > AVCodecContext *codec; > > But the examples linked to

Re: [Libav-user] FFMPEG for arm architecture

It is possible to compile for armeabi, armeabi-v7 neon and non-neon as well. Also you can compile a version for arm64 too. However I don't think there are any Android anymore that are not v7 compatible, and non-neon is almost non existent as well. So a armeabi-v7 neon build would be compatible

[Libav-user] Using audio filters with raw PCM audio data.

Looking at the filtering example, it appears AVFrame's are needed to pass to the filter graph. Is it possible/feasible to create our own AVFrame's if we have raw PCM audio of a known format in order to pass to the filters? Is there any way else? Somewhere that shows an example of such thing?

Re: [Libav-user] Using audio filters with raw PCM audio data.

It's shorts in memory that must be processed in real time. On Dec 1, 2016 6:46 PM, "Carl Eugen Hoyos" <ceffm...@gmail.com> wrote: > 2016-12-01 21:13 GMT+01:00 Steve Myers <musicspeedchan...@gmail.com>: > > Looking at the filtering example, it appears

[Libav-user] Configuration from shared library?

Due to circumstances I lost the build script I used to build the shared libraries for my app. Is there a way a to get the configuration used from shared libraries similar to the command line ffmpeg? I only have libavcodec-57.so, libavformat-57.so, etc.