[alsa-devel] [ALSA patch] FW: [PATCH - alsa-lib 1/4] pcm_file: add support for infile reading in non interleaved mode

[Miartus, Adam (Arion Recruitment; ADITG/ESM)]

> On Mon, 20 May 2019 18:49:34 +0200,
> Miartus, Adam (Arion Recruitment; ADITG/ESM) wrote:
> >
> > From: Adam Miartus <amiartus at de.adit-jv.com>
> >
> > add helper function to copy input file data to buffer mapped by areas, in
> case of an error, do not fill the areas, allowing device read buffer to be
> provided to api caller
> >
> > previously unused rbuf variable is reused for this purpose
> >
> > Signed-off-by: Adam Miartus <amiartus at de.adit-jv.com>
> > Reviewed-by: Timo Wischer <twischer at de.adit-jv.com>
> >
> > diff --git a/src/pcm/pcm_file.c b/src/pcm/pcm_file.c index
> 3a19cef..7998b64 100644
> > --- a/src/pcm/pcm_file.c
> > +++ b/src/pcm/pcm_file.c
> > @@ -77,6 +77,7 @@ typedef struct {
> >  	snd_pcm_uframes_t appl_ptr;
> >  	snd_pcm_uframes_t file_ptr_bytes;
> >  	snd_pcm_uframes_t wbuf_size;
> > +	snd_pcm_uframes_t rbuf_size;
> >  	size_t wbuf_size_bytes;
> >  	size_t wbuf_used_bytes;
> >  	char *wbuf;
> > @@ -266,6 +267,37 @@ static int
> snd_pcm_file_open_output_file(snd_pcm_file_t *file)
> >  	return 0;
> >  }
> >
> > +/* fill areas with data from input file, return bytes red */ static int
> > +snd_pcm_file_areas_read_infile(snd_pcm_t *pcm, const
> snd_pcm_channel_area_t *areas,
> > +	snd_pcm_uframes_t offset, snd_pcm_uframes_t frames) {
> 
> Please follow the standard coding style.
> 
> > +	snd_pcm_file_t *file = pcm->private_data;
> > +	snd_pcm_channel_area_t areas_if[pcm->channels];
> > +	ssize_t bytes;
> > +
> > +	if (file->ifd < 0)
> > +		return -EBADF;
> > +
> > +	if (file->rbuf == NULL)
> > +		return -ENOMEM;
> > +
> > +	if (file->rbuf_size < frames) {
> > +		SYSERR("requested more frames than pcm buffer");
> > +		return -ENOMEM;
> > +	}
> > +
> > +	bytes = read(file->ifd, file->rbuf, snd_pcm_frames_to_bytes(pcm,
> frames));
> > +	if (bytes < 0) {
> > +		SYSERR("read from file failed, error: %d", bytes);
> > +		return bytes;
> > +	}
> > +
> > +	snd_pcm_areas_from_buf(pcm, areas_if, file->rbuf);
> > +	snd_pcm_areas_copy(areas, offset, areas_if, 0, pcm->channels,
> > +snd_pcm_bytes_to_frames(pcm, bytes), pcm->format);
> 
> Wrong indentation.
> 
> 
> thanks,
> 
> Takashi

Sorry, my email client messed up the whitespace. I re-sent the patch using git send-mail.

Best Regards,

Adam