[FFmpeg-devel] [PATCH] convert to S16 when resampling is requested

Baptiste Coudurier baptiste.coudurier
Tue Feb 10 02:50:57 CET 2009


Michael Niedermayer wrote:
> On Mon, Feb 09, 2009 at 11:55:19AM -0800, Baptiste Coudurier wrote:
>> Michael Niedermayer wrote:
>>> [...]
>>>
>>>> @@ -153,6 +173,36 @@
>>>>      if (s->output_channels < s->filter_channels)
>>>>          s->filter_channels = s->output_channels;
>>>>  
>>>> +    s->sample_fmt [0] = sample_fmt_in;
>>>> +    s->sample_fmt [1] = sample_fmt_out;
>>>> +    s->sample_size[0] = av_get_bits_per_sample_format(s->sample_fmt[0])>>3;
>>>> +    s->sample_size[1] = av_get_bits_per_sample_format(s->sample_fmt[1])>>3;
>>>> +
>>>> +    if (s->sample_fmt[0] != SAMPLE_FMT_S16) {
>>>> +        av_audio_convert_free(s->convert_ctx[0]);
>>>> +        if (!(s->convert_ctx[0] = av_audio_convert_alloc(SAMPLE_FMT_S16, 1,
>>>> +                                                         s->sample_fmt[0], 1, NULL, 0))) {
>>>> +            av_log(s, AV_LOG_ERROR,
>>>> +                   "Cannot convert %s sample format to s16 sample format\n",
>>>> +                   avcodec_get_sample_fmt_name(s->sample_fmt[0]));
>>>> +            av_free(s);
>>>> +            return NULL;
>>> considering that there is
>>> av_audio_convert_free(s->convert_ctx[1]);
>>> below i wonder if it could be leaking here
>> I'm not sure to understand, do you want me to av_audio_convert_free like:
>>
>> av_audio_convert_free(s->convert_ctx[0]);
>> av_audio_convert_free(s->convert_ctx[1]);
>>
>> in the "if" ?
> 
> i thought that
> av_audio_convert_free(s->convert_ctx[1]);
> is needed inside the AV_LOG_ERROR if() quoted above
> or
> av_audio_convert_free(s->convert_ctx[1]);
> is not needed in the if() (not quoted) below
> 
> but it seems more that the one below is unneeded and similarly the
> av_audio_convert_free(s->convert_ctx[0]) quote above
> 
> but ive not re read the patch just a quick look at svn that allocated a
> new "s" that shouldnt contain anything that might need freeing ...

Ok patch updated to be sure.

-- 
Baptiste COUDURIER                              GnuPG Key Id: 0x5C1ABAAA
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FFmpeg maintainer                                  http://www.ffmpeg.org
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