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Fix for frame size not byte aligned

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This commit is contained in:
Abramo Bagnara 2000-06-05 15:28:39 +00:00
parent ee5465d113
commit 7fe55fff6a
3 changed files with 22 additions and 14 deletions
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22
src/pcm/pcm_plug.c
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@ -334,7 +334,8 @@ static int snd_pcm_plug_stream_params(snd_pcm_t *pcm, snd_pcm_stream_params_t *p
snd_pcm_stream_info_t slave_info;
snd_pcm_plugin_t *plugin;
snd_pcm_plug_t *plug;
size_t bytes_per_frame;
size_t bits;
size_t bytes_align;
int err;
int stream = params->stream;
@ -366,20 +367,21 @@ static int snd_pcm_plug_stream_params(snd_pcm_t *pcm, snd_pcm_stream_params_t *p
return snd_pcm_stream_params(plug->slave, params);
/* compute right sizes */
bytes_per_frame = snd_pcm_format_size(params->format.format, params->format.channels);
if (bytes_per_frame == 0)
bytes_per_frame = 1;
params1.frag_size -= params1.frag_size % bytes_per_frame;
bits = snd_pcm_format_physical_width(params->format.format) * params->format.channels;
while (bits % 8 != 0)
bits *= 2;
bytes_align = bits / 8;
params1.frag_size -= params1.frag_size % bytes_align;
slave_params.frag_size = snd_pcm_plug_slave_size(pcm, stream, params1.frag_size);
params1.buffer_size -= params1.buffer_size % bytes_per_frame;
params1.buffer_size -= params1.buffer_size % bytes_align;
slave_params.buffer_size = snd_pcm_plug_slave_size(pcm, stream, params1.buffer_size);
params1.bytes_fill_max -= params1.bytes_fill_max % bytes_per_frame;
params1.bytes_fill_max -= params1.bytes_fill_max % bytes_align;
slave_params.bytes_fill_max = snd_pcm_plug_slave_size(pcm, stream, params1.bytes_fill_max);
params1.bytes_min -= params1.bytes_min % bytes_per_frame;
params1.bytes_min -= params1.bytes_min % bytes_align;
slave_params.bytes_min = snd_pcm_plug_slave_size(pcm, stream, params1.bytes_min);
params1.bytes_xrun_max -= params1.bytes_xrun_max % bytes_per_frame;
params1.bytes_xrun_max -= params1.bytes_xrun_max % bytes_align;
slave_params.bytes_xrun_max = snd_pcm_plug_slave_size(pcm, stream, params1.bytes_xrun_max);
params1.bytes_align -= params1.bytes_align % bytes_per_frame;
params1.bytes_align -= params1.bytes_align % bytes_align;
slave_params.bytes_align = snd_pcm_plug_slave_size(pcm, stream, params1.bytes_align);
if (slave_params.byte_boundary == 0 || slave_params.byte_boundary > INT_MAX)
slave_params.byte_boundary = INT_MAX;