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add a "length" argument to the seek functions, as an optimization to request a certain block size if any data needs to be generated. this is merely a hint.

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/lennart@1833 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2007-09-16 22:00:38 +00:00
parent 5df7a85473
commit 1d1eda6059
11 changed files with 94 additions and 50 deletions
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8
src/modules/module-combine.c
View file

@ -275,7 +275,7 @@ finish:
pa_log_debug("Thread shutting down");
}
static void request_memblock(struct output *o) {
static void request_memblock(struct output *o, size_t length) {
pa_memchunk chunk;
pa_assert(o);
@ -306,7 +306,7 @@ static void request_memblock(struct output *o) {
struct output *j;
/* Do it! */
pa_sink_render(o->userdata->sink, o->userdata->block_size, &chunk);
pa_sink_render(o->userdata->sink, length, &chunk);
/* OK, let's send this data to the other threads */
for (j = o->userdata->thread_info.outputs; j; j = j->next)
@ -323,7 +323,7 @@ static void request_memblock(struct output *o) {
}
/* Called from I/O thread context */
static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk) {
struct output *o;
pa_sink_input_assert_ref(i);
@ -331,7 +331,7 @@ static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
pa_assert(o);
/* If necessary, get some new data */
request_memblock(o);
request_memblock(o, length);
return pa_memblockq_peek(o->memblockq, chunk);
}

2
src/modules/module-sine.c
View file

@ -58,7 +58,7 @@ static const char* const valid_modargs[] = {
NULL,
};
static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk) {
struct userdata *u;
pa_assert(i);

2
src/pulsecore/play-memblockq.c
View file

@ -97,7 +97,7 @@ static void sink_input_kill_cb(pa_sink_input *i) {
memblockq_stream_unlink(MEMBLOCKQ_STREAM(i->userdata));
}
static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk) {
memblockq_stream *u;
pa_assert(i);

2
src/pulsecore/play-memchunk.c
View file

@ -97,7 +97,7 @@ static void sink_input_kill_cb(pa_sink_input *i) {
memchunk_stream_unlink(MEMCHUNK_STREAM(i->userdata));
}
static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk) {
memchunk_stream *u;
pa_assert(i);

4
src/pulsecore/protocol-esound.c
View file

@ -150,7 +150,7 @@ typedef struct proto_handler {
} esd_proto_handler_info_t;
static void sink_input_drop_cb(pa_sink_input *i, size_t length);
static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk);
static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk);
static void sink_input_kill_cb(pa_sink_input *i);
static int sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk);
static pa_usec_t source_output_get_latency_cb(pa_source_output *o);
@ -1237,7 +1237,7 @@ static int sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int
}
/* Called from thread context */
static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk) {
connection*c;
int r;

4
src/pulsecore/protocol-native.c
View file

@ -199,7 +199,7 @@ enum {
CONNECTION_MESSAGE_REVOKE
};
static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk);
static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk);
static void sink_input_drop_cb(pa_sink_input *i, size_t length);
static void sink_input_kill_cb(pa_sink_input *i);
@ -973,7 +973,7 @@ static int sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int
}
/* Called from thread context */
static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk) {
playback_stream *s;
pa_sink_input_assert_ref(i);

2
src/pulsecore/protocol-simple.c
View file

@ -343,7 +343,7 @@ static int sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int
}
/* Called from thread context */
static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk) {
connection *c;
int r;

52
src/pulsecore/sink-input.c
View file

@ -41,9 +41,9 @@
#include "sink-input.h"
#define CONVERT_BUFFER_LENGTH 4096
#define MOVE_BUFFER_LENGTH (1024*1024)
#define SILENCE_BUFFER_LENGTH (64*1024)
#define CONVERT_BUFFER_LENGTH (PA_PAGE_SIZE)
#define SILENCE_BUFFER_LENGTH (PA_PAGE_SIZE*12)
#define MOVE_BUFFER_LENGTH (PA_PAGE_SIZE*256)
static PA_DEFINE_CHECK_TYPE(pa_sink_input, pa_msgobject);
@ -368,13 +368,15 @@ pa_usec_t pa_sink_input_get_latency(pa_sink_input *i) {
}
/* Called from thread context */
int pa_sink_input_peek(pa_sink_input *i, pa_memchunk *chunk, pa_cvolume *volume) {
int pa_sink_input_peek(pa_sink_input *i, size_t length, pa_memchunk *chunk, pa_cvolume *volume) {
int ret = -1;
int do_volume_adj_here;
int volume_is_norm;
size_t block_size_max;
pa_sink_input_assert_ref(i);
pa_assert(PA_SINK_INPUT_LINKED(i->thread_info.state));
pa_assert(pa_frame_aligned(length, &i->sink->sample_spec));
pa_assert(chunk);
pa_assert(volume);
@ -383,6 +385,15 @@ int pa_sink_input_peek(pa_sink_input *i, pa_memchunk *chunk, pa_cvolume *volume)
pa_assert(i->thread_info.state == PA_SINK_INPUT_RUNNING || i->thread_info.state == PA_SINK_INPUT_DRAINED);
/* Default buffer size */
if (length <= 0)
length = pa_frame_align(CONVERT_BUFFER_LENGTH, &i->sink->sample_spec);
/* Make sure the buffer fits in the mempool tile */
block_size_max = pa_mempool_block_size_max(i->sink->core->mempool);
if (length > block_size_max)
length = pa_frame_align(block_size_max, &i->sink->sample_spec);
if (i->thread_info.move_silence > 0) {
size_t l;
@ -390,7 +401,10 @@ int pa_sink_input_peek(pa_sink_input *i, pa_memchunk *chunk, pa_cvolume *volume)
* while until the old sink has drained its playback buffer */
if (!i->thread_info.silence_memblock)
i->thread_info.silence_memblock = pa_silence_memblock_new(i->sink->core->mempool, &i->sink->sample_spec, SILENCE_BUFFER_LENGTH);
i->thread_info.silence_memblock = pa_silence_memblock_new(
i->sink->core->mempool,
&i->sink->sample_spec,
pa_frame_align(SILENCE_BUFFER_LENGTH, &i->sink->sample_spec));
chunk->memblock = pa_memblock_ref(i->thread_info.silence_memblock);
chunk->index = 0;
@ -404,7 +418,7 @@ int pa_sink_input_peek(pa_sink_input *i, pa_memchunk *chunk, pa_cvolume *volume)
if (!i->thread_info.resampler) {
do_volume_adj_here = 0; /* FIXME??? */
ret = i->peek(i, chunk);
ret = i->peek(i, length, chunk);
goto finish;
}
@ -413,15 +427,22 @@ int pa_sink_input_peek(pa_sink_input *i, pa_memchunk *chunk, pa_cvolume *volume)
while (!i->thread_info.resampled_chunk.memblock) {
pa_memchunk tchunk;
size_t l;
size_t l, rmbs;
if ((ret = i->peek(i, &tchunk)) < 0)
l = pa_resampler_request(i->thread_info.resampler, length);
if (l <= 0)
l = pa_frame_align(CONVERT_BUFFER_LENGTH, &i->sample_spec);
rmbs = pa_resampler_max_block_size(i->thread_info.resampler);
if (l > rmbs)
l = rmbs;
if ((ret = i->peek(i, l, &tchunk)) < 0)
goto finish;
pa_assert(tchunk.length > 0);
l = pa_resampler_request(i->thread_info.resampler, CONVERT_BUFFER_LENGTH);
if (tchunk.length > l)
tchunk.length = l;
@ -477,6 +498,7 @@ finish:
void pa_sink_input_drop(pa_sink_input *i, size_t length) {
pa_sink_input_assert_ref(i);
pa_assert(PA_SINK_INPUT_LINKED(i->thread_info.state));
pa_assert(pa_frame_aligned(length, &i->sink->sample_spec));
pa_assert(length > 0);
if (i->thread_info.move_silence > 0) {
@ -527,7 +549,7 @@ void pa_sink_input_drop(pa_sink_input *i, size_t length) {
pa_memchunk chunk;
pa_cvolume volume;
if (pa_sink_input_peek(i, &chunk, &volume) >= 0) {
if (pa_sink_input_peek(i, length, &chunk, &volume) >= 0) {
size_t l;
pa_memblock_unref(chunk.memblock);
@ -542,10 +564,12 @@ void pa_sink_input_drop(pa_sink_input *i, size_t length) {
} else {
size_t l;
l = pa_resampler_request(i->thread_info.resampler, length);
/* Hmmm, peeking failed, so let's at least drop
* the right amount of data */
if ((l = pa_resampler_request(i->thread_info.resampler, length)) > 0)
if (l > 0)
if (i->drop)
i->drop(i, l);
@ -798,9 +822,9 @@ int pa_sink_input_move_to(pa_sink_input *i, pa_sink *dest, int immediately) {
i->thread_info.move_silence = 0;
else
i->thread_info.move_silence = pa_usec_to_bytes(
pa_bytes_to_usec(i->thread_info.move_silence, &i->sample_spec) +
pa_bytes_to_usec(i->thread_info.move_silence, &origin->sample_spec) +
silence_usec,
&i->sample_spec);
&dest->sample_spec);
pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i->sink), PA_SINK_MESSAGE_ADD_INPUT, i, 0, NULL);

10
src/pulsecore/sink-input.h
View file

@ -83,8 +83,12 @@ struct pa_sink_input {
int muted;
/* Returns the chunk of audio data (but doesn't drop it
* yet!). Returns -1 on failure. Called from IO thread context. */
int (*peek) (pa_sink_input *i, pa_memchunk *chunk);
* yet!). Returns -1 on failure. Called from IO thread context. If
* data needs to be generated from scratch then please in the
* specified length. This is an optimization only. If less data is
* available, it's fine to return a smaller block. If more data is
* already ready, it is better to return the full block.*/
int (*peek) (pa_sink_input *i, size_t length, pa_memchunk *chunk);
/* Drops the specified number of bytes, usually called right after
* peek(), but not necessarily. Called from IO thread context. */
@ -217,7 +221,7 @@ pa_sink_input_state_t pa_sink_input_get_state(pa_sink_input *i);
/* To be used exclusively by the sink driver thread */
int pa_sink_input_peek(pa_sink_input *i, pa_memchunk *chunk, pa_cvolume *volume);
int pa_sink_input_peek(pa_sink_input *i, size_t length, pa_memchunk *chunk, pa_cvolume *volume);
void pa_sink_input_drop(pa_sink_input *i, size_t length);
int pa_sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk);

42
src/pulsecore/sink.c
View file

@ -46,7 +46,8 @@
#include "sink.h"
#define MAX_MIX_CHANNELS 32
#define SILENCE_BUFFER_LENGTH (64*1024)
#define MIX_BUFFER_LENGTH (PA_PAGE_SIZE)
#define SILENCE_BUFFER_LENGTH (PA_PAGE_SIZE*12)
static PA_DEFINE_CHECK_TYPE(pa_sink, pa_msgobject);
@ -311,7 +312,7 @@ void pa_sink_ping(pa_sink *s) {
pa_asyncmsgq_post(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_PING, NULL, 0, NULL, NULL);
}
static unsigned fill_mix_info(pa_sink *s, pa_mix_info *info, unsigned maxinfo) {
static unsigned fill_mix_info(pa_sink *s, size_t length, pa_mix_info *info, unsigned maxinfo) {
pa_sink_input *i;
unsigned n = 0;
void *state = NULL;
@ -322,7 +323,7 @@ static unsigned fill_mix_info(pa_sink *s, pa_mix_info *info, unsigned maxinfo) {
while ((i = pa_hashmap_iterate(s->thread_info.inputs, &state, NULL)) && maxinfo > 0) {
pa_sink_input_assert_ref(i);
if (pa_sink_input_peek(i, &info->chunk, &info->volume) < 0)
if (pa_sink_input_peek(i, length, &info->chunk, &info->volume) < 0)
continue;
info->userdata = pa_sink_input_ref(i);
@ -399,20 +400,32 @@ static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned n, size_t length
void pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) {
pa_mix_info info[MAX_MIX_CHANNELS];
unsigned n;
size_t block_size_max;
pa_sink_assert_ref(s);
pa_assert(PA_SINK_OPENED(s->thread_info.state));
pa_assert(length);
pa_assert(pa_frame_aligned(length, &s->sample_spec));
pa_assert(result);
pa_sink_ref(s);
n = s->thread_info.state == PA_SINK_RUNNING ? fill_mix_info(s, info, MAX_MIX_CHANNELS) : 0;
if (length <= 0)
length = pa_frame_align(MIX_BUFFER_LENGTH, &s->sample_spec);
block_size_max = pa_mempool_block_size_max(s->core->mempool);
if (length > block_size_max)
length = pa_frame_align(block_size_max, &s->sample_spec);
pa_assert(length > 0);
n = s->thread_info.state == PA_SINK_RUNNING ? fill_mix_info(s, length, info, MAX_MIX_CHANNELS) : 0;
if (n == 0) {
if (length > SILENCE_BUFFER_LENGTH)
length = SILENCE_BUFFER_LENGTH;
length = pa_frame_align(SILENCE_BUFFER_LENGTH, &s->sample_spec);
pa_assert(length > 0);
if (!s->silence || pa_memblock_get_length(s->silence) < length) {
if (s->silence)
@ -470,11 +483,12 @@ void pa_sink_render_into(pa_sink*s, pa_memchunk *target) {
pa_assert(PA_SINK_OPENED(s->thread_info.state));
pa_assert(target);
pa_assert(target->memblock);
pa_assert(target->length);
pa_assert(target->length > 0);
pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
pa_sink_ref(s);
n = s->thread_info.state == PA_SINK_RUNNING ? fill_mix_info(s, info, MAX_MIX_CHANNELS) : 0;
n = s->thread_info.state == PA_SINK_RUNNING ? fill_mix_info(s, target->length, info, MAX_MIX_CHANNELS) : 0;
if (n == 0) {
pa_silence_memchunk(target, &s->sample_spec);
@ -536,7 +550,8 @@ void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
pa_assert(PA_SINK_OPENED(s->thread_info.state));
pa_assert(target);
pa_assert(target->memblock);
pa_assert(target->length);
pa_assert(target->length > 0);
pa_assert(pa_frame_aligned(target->length, &s->sample_spec));
pa_sink_ref(s);
@ -559,13 +574,15 @@ void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) {
void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) {
pa_sink_assert_ref(s);
pa_assert(PA_SINK_OPENED(s->thread_info.state));
pa_assert(length);
pa_assert(length > 0);
pa_assert(pa_frame_aligned(length, &s->sample_spec));
pa_assert(result);
/*** This needs optimization ***/
result->memblock = pa_memblock_new(s->core->mempool, result->length = length);
result->index = 0;
result->length = length;
result->memblock = pa_memblock_new(s->core->mempool, length);
pa_sink_render_into_full(s, result);
}
@ -577,6 +594,7 @@ void pa_sink_skip(pa_sink *s, size_t length) {
pa_sink_assert_ref(s);
pa_assert(PA_SINK_OPENED(s->thread_info.state));
pa_assert(length > 0);
pa_assert(pa_frame_aligned(length, &s->sample_spec));
if (pa_source_used_by(s->monitor_source)) {
pa_memchunk chunk;
@ -853,7 +871,7 @@ int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offse
pa_cvolume volume;
size_t n;
if (pa_sink_input_peek(info->sink_input, &memchunk, &volume) < 0)
if (pa_sink_input_peek(info->sink_input, info->buffer_bytes, &memchunk, &volume) < 0)
break;
n = memchunk.length > info->buffer_bytes ? info->buffer_bytes : memchunk.length;

10
src/pulsecore/sound-file-stream.c
View file

@ -44,8 +44,6 @@
#include "sound-file-stream.h"
#define BUF_SIZE (1024*16)
typedef struct file_stream {
pa_msgobject parent;
pa_core *core;
@ -113,7 +111,7 @@ static void sink_input_kill_cb(pa_sink_input *i) {
file_stream_unlink(FILE_STREAM(i->userdata));
}
static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk) {
file_stream *u;
pa_assert(i);
@ -128,7 +126,7 @@ static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
if (!u->memchunk.memblock) {
u->memchunk.memblock = pa_memblock_new(i->sink->core->mempool, BUF_SIZE);
u->memchunk.memblock = pa_memblock_new(i->sink->core->mempool, length);
u->memchunk.index = 0;
if (u->readf_function) {
@ -137,7 +135,7 @@ static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
size_t fs = pa_frame_size(&i->sample_spec);
p = pa_memblock_acquire(u->memchunk.memblock);
n = u->readf_function(u->sndfile, p, BUF_SIZE/fs);
n = u->readf_function(u->sndfile, p, length/fs);
pa_memblock_release(u->memchunk.memblock);
if (n <= 0)
@ -149,7 +147,7 @@ static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) {
void *p;
p = pa_memblock_acquire(u->memchunk.memblock);
n = sf_read_raw(u->sndfile, p, BUF_SIZE);
n = sf_read_raw(u->sndfile, p, length);
pa_memblock_release(u->memchunk.memblock);
if (n <= 0)