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sink-input, source-output: Interpret missing PCM parameters in format info as a request to decide those parameters at the server end

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The "fix flags" (PA_SINK_INPUT_FIX_FORMAT etc.) don't work properly
with the pa_stream_new_extended() interface. This patch fixes it so
that the same effect can be achieved by leaving some of the PCM
parameters unspecified in format info objects. Also, when converting
a sample spec to a format info when using the old pa_stream_new()
interface, the "fix flags" are taken into account in that conversion.

BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=68952
This commit is contained in:
Tanu Kaskinen 2013-12-04 06:09:23 +02:00
parent d27a650cd5
commit f41650a550
2 changed files with 69 additions and 112 deletions
Download patch file Download diff file Expand all files Collapse all files

89
src/pulsecore/source-output.c
View file

@ -32,7 +32,9 @@
#include <pulse/util.h>
#include <pulse/internal.h>
#include <pulsecore/core-format.h>
#include <pulsecore/mix.h>
#include <pulsecore/stream-util.h>
#include <pulsecore/core-subscribe.h>
#include <pulsecore/log.h>
#include <pulsecore/namereg.h>
@ -221,11 +223,9 @@ int pa_source_output_new(
pa_source_output *o;
pa_resampler *resampler = NULL;
char st[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX], fmt[PA_FORMAT_INFO_SNPRINT_MAX];
pa_channel_map original_cm;
pa_channel_map volume_map;
int r;
char *pt;
pa_sample_spec ss;
pa_channel_map map;
pa_assert(_o);
pa_assert(core);
@ -242,11 +242,19 @@ int pa_source_output_new(
/* From this point on, we want to work only with formats, and get back
* to using the sample spec and channel map after all decisions w.r.t.
* routing are complete. */
pa_idxset *tmp = pa_idxset_new(NULL, NULL);
pa_format_info *f = pa_format_info_from_sample_spec(&data->sample_spec,
data->channel_map_is_set ? &data->channel_map : NULL);
pa_idxset_put(tmp, f, NULL);
pa_source_output_new_data_set_formats(data, tmp);
pa_format_info *f;
pa_idxset *formats;
f = pa_format_info_from_sample_spec2(&data->sample_spec, data->channel_map_is_set ? &data->channel_map : NULL,
!(data->flags & PA_SOURCE_OUTPUT_FIX_FORMAT),
!(data->flags & PA_SOURCE_OUTPUT_FIX_RATE),
!(data->flags & PA_SOURCE_OUTPUT_FIX_CHANNELS));
if (!f)
return -PA_ERR_INVALID;
formats = pa_idxset_new(NULL, NULL);
pa_idxset_put(formats, f, NULL);
pa_source_output_new_data_set_formats(data, formats);
}
if ((r = pa_hook_fire(&core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_NEW], data)) < 0)
@ -291,26 +299,22 @@ int pa_source_output_new(
return -PA_ERR_NOTSUPPORTED;
}
/* Now populate the sample spec and format according to the final
* format that we've negotiated */
pa_return_val_if_fail(pa_format_info_to_sample_spec(data->format, &ss, &map) == 0, -PA_ERR_INVALID);
pa_source_output_new_data_set_sample_spec(data, &ss);
if (pa_format_info_is_pcm(data->format) && pa_channel_map_valid(&map))
pa_source_output_new_data_set_channel_map(data, &map);
if (!data->sample_spec_is_set)
data->sample_spec = data->source->sample_spec;
pa_return_val_if_fail(pa_sample_spec_valid(&data->sample_spec), -PA_ERR_INVALID);
if (!data->channel_map_is_set) {
if (pa_channel_map_compatible(&data->source->channel_map, &data->sample_spec))
data->channel_map = data->source->channel_map;
else
pa_channel_map_init_extend(&data->channel_map, data->sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
if (data->volume_is_set && pa_format_info_is_pcm(data->format)) {
/* If volume is set, we need to save the original data->channel_map,
* so that we can remap the volume from the original channel map to the
* final channel map of the stream in case data->channel_map gets
* modified in pa_format_info_to_sample_spec2(). */
r = pa_stream_get_volume_channel_map(&data->volume, data->channel_map_is_set ? &data->channel_map : NULL, data->format, &volume_map);
if (r < 0)
return r;
}
pa_return_val_if_fail(pa_channel_map_compatible(&data->channel_map, &data->sample_spec), -PA_ERR_INVALID);
/* Now populate the sample spec and channel map according to the final
* format that we've negotiated */
r = pa_format_info_to_sample_spec2(data->format, &data->sample_spec, &data->channel_map, &data->source->sample_spec,
&data->source->channel_map);
if (r < 0)
return r;
/* Don't restore (or save) stream volume for passthrough streams and
* prevent attenuation/gain */
@ -330,7 +334,10 @@ int pa_source_output_new(
if (!data->volume_writable)
data->save_volume = false;
pa_return_val_if_fail(pa_cvolume_compatible(&data->volume, &data->sample_spec), -PA_ERR_INVALID);
if (data->volume_is_set)
/* The original volume channel map may be different than the final
* stream channel map, so remapping may be needed. */
pa_cvolume_remap(&data->volume, &volume_map, &data->channel_map);
if (!data->volume_factor_is_set)
pa_cvolume_reset(&data->volume_factor, data->sample_spec.channels);
@ -345,31 +352,6 @@ int pa_source_output_new(
if (!data->muted_is_set)
data->muted = false;
if (data->flags & PA_SOURCE_OUTPUT_FIX_FORMAT) {
pa_return_val_if_fail(pa_format_info_is_pcm(data->format), -PA_ERR_INVALID);
data->sample_spec.format = data->source->sample_spec.format;
pa_format_info_set_sample_format(data->format, data->sample_spec.format);
}
if (data->flags & PA_SOURCE_OUTPUT_FIX_RATE) {
pa_return_val_if_fail(pa_format_info_is_pcm(data->format), -PA_ERR_INVALID);
pa_format_info_set_rate(data->format, data->sample_spec.rate);
data->sample_spec.rate = data->source->sample_spec.rate;
}
original_cm = data->channel_map;
if (data->flags & PA_SOURCE_OUTPUT_FIX_CHANNELS) {
pa_return_val_if_fail(pa_format_info_is_pcm(data->format), -PA_ERR_INVALID);
data->sample_spec.channels = data->source->sample_spec.channels;
data->channel_map = data->source->channel_map;
pa_format_info_set_channels(data->format, data->sample_spec.channels);
pa_format_info_set_channel_map(data->format, &data->channel_map);
}
pa_assert(pa_sample_spec_valid(&data->sample_spec));
pa_assert(pa_channel_map_valid(&data->channel_map));
if (!(data->flags & PA_SOURCE_OUTPUT_VARIABLE_RATE) &&
!pa_sample_spec_equal(&data->sample_spec, &data->source->sample_spec)) {
/* try to change source rate. This is done before the FIXATE hook since
@ -388,9 +370,6 @@ int pa_source_output_new(
return -PA_ERR_NOTSUPPORTED;
}
/* Due to the fixing of the sample spec the volume might not match anymore */
pa_cvolume_remap(&data->volume, &original_cm, &data->channel_map);
if (data->resample_method == PA_RESAMPLER_INVALID)
data->resample_method = core->resample_method;