[Libav-user] Why (c->frame_size = 0) ?

[Paul B Mahol]

On 2/26/13, Haridas Sagar N <haridassagarn at tataelxsi.co.in> wrote:
>> codec = avcodec_find_encoder(AV_CODEC_ID_PCM_S16LE);
> " AV_CODEC_ID_PCM_S16LE" is not the codec id it is just the sample format do
> you have to use AV_CODEC_ID_MP2 i guess...

wrong.

>
> and can i know what exactly you are working on decoding_encoding.c example
>
> Regards
>
> Haridas Sagar N
> ________________________________________
> From: libav-user-bounces at ffmpeg.org [libav-user-bounces at ffmpeg.org] on
> behalf of Paul B Mahol [onemda at gmail.com]
> Sent: Tuesday, February 26, 2013 12:23 AM
> To: This list is about using libavcodec, libavformat, libavutil,
> libavdevice and libavfilter.
> Subject: Re: [Libav-user] Why (c->frame_size = 0) ?
>
> On 2/25/13, Joe Flowers <joe.flowers at nofreewill.com> wrote:
>> In the decoding_encoding.c file, I have changed
>>
>>
>> codec = avcodec_find_encoder(AV_CODEC_ID_MP2);
>> to
>> codec = avcodec_find_encoder(AV_CODEC_ID_PCM_S16LE);
>>
>>
>> but now I get
>>
>>
>> "Could not allocate -22 bytes for samples buffer"
>>
>> back from
>>
>> buffer_size = av_samples_get_buffer_size(NULL, c->channels,
>> c->frame_size, c->sample_fmt, 0);
>>
>>
>> Anyone know how I can fix this problem?
>
> Without exact source code? Unlikely.
>
>>
>> Thanks!
>>
>> Joe
>>
>> ----------------------------------------------------
>> //For AV_CODEC_ID_PCM_S16LE:
>> //c->channels = (2).
>> //c->frame_size = (0).
>
> looks wrong.
>
>> //c->sample_fmt = (1).
>
> looks wrong.
>
>>
>> //For AV_CODEC_ID_MP2:
>> //c->channels = (2).
>> //c->frame_size = (1152).
>> //c->sample_fmt = (1).
>
> looks wrong.
>
>> -----------------------------------------------------
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>>
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