pipewire/spa/plugins/ffmpeg/ffmpeg-dec.c
Wim Taymans 68148188fa Add support for async results
Add an async result code and an event to signal the completion.
Use async return values to signal completion of a method and potential
state change.
Add selected format to port update message.
Make it possible to parse into a custom copy of the command memory.
Remove state change events from the elements, we now just update the
state.
Implement async results in the proxy element
Add support for removing buffers in the client.
Fix up pinossink
Deal with async return in the links.
2016-09-22 09:08:44 +02:00

561 lines
14 KiB
C

/* Spa FFMpeg Decoder
* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <stddef.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <spa/node.h>
#include <spa/video/format.h>
typedef struct _SpaFFMpegDec SpaFFMpegDec;
typedef struct {
SpaProps props;
} SpaFFMpegDecProps;
static void
reset_ffmpeg_dec_props (SpaFFMpegDecProps *props)
{
}
#define INPUT_PORT_ID 0
#define OUTPUT_PORT_ID 1
#define IS_VALID_PORT(id) ((id) < 2)
#define MAX_BUFFERS 32
typedef struct _FFMpegBuffer FFMpegBuffer;
struct _FFMpegBuffer {
SpaBuffer buffer;
SpaMeta metas[1];
SpaMetaHeader header;
SpaData datas[1];
SpaFFMpegDec *dec;
SpaBuffer *imported;
bool outstanding;
FFMpegBuffer *next;
};
typedef struct {
SpaFormatVideo format[2];
SpaFormat *current_format;
bool have_buffers;
FFMpegBuffer buffers[MAX_BUFFERS];
SpaPortInfo info;
SpaAllocParam *params[1];
SpaAllocParamBuffers param_buffers;
SpaPortStatus status;
} SpaFFMpegState;
struct _SpaFFMpegDec {
SpaHandle handle;
SpaNode node;
SpaFFMpegDecProps props[2];
SpaNodeEventCallback event_cb;
void *user_data;
SpaFFMpegState state[2];
};
enum {
PROP_ID_LAST,
};
static const SpaPropInfo prop_info[] =
{
{ 0, },
};
static SpaResult
spa_ffmpeg_dec_node_get_props (SpaNode *node,
SpaProps **props)
{
SpaFFMpegDec *this;
if (node == NULL || node->handle == NULL || props == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaFFMpegDec *) node->handle;
memcpy (&this->props[0], &this->props[1], sizeof (this->props[1]));
*props = &this->props[0].props;
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_dec_node_set_props (SpaNode *node,
const SpaProps *props)
{
SpaFFMpegDec *this;
SpaFFMpegDecProps *p;
SpaResult res;
if (node == NULL || node->handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaFFMpegDec *) node->handle;
p = &this->props[1];
if (props == NULL) {
reset_ffmpeg_dec_props (p);
return SPA_RESULT_OK;
}
res = spa_props_copy (props, &p->props);
return res;
}
static void
update_state (SpaFFMpegDec *this, SpaNodeState state)
{
this->node.state = state;
}
static SpaResult
spa_ffmpeg_dec_node_send_command (SpaNode *node,
SpaNodeCommand *command)
{
SpaFFMpegDec *this;
if (node == NULL || node->handle == NULL || command == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaFFMpegDec *) node->handle;
switch (command->type) {
case SPA_NODE_COMMAND_INVALID:
return SPA_RESULT_INVALID_COMMAND;
case SPA_NODE_COMMAND_START:
update_state (this, SPA_NODE_STATE_STREAMING);
break;
case SPA_NODE_COMMAND_PAUSE:
update_state (this, SPA_NODE_STATE_PAUSED);
break;
case SPA_NODE_COMMAND_FLUSH:
case SPA_NODE_COMMAND_DRAIN:
case SPA_NODE_COMMAND_MARKER:
case SPA_NODE_COMMAND_CLOCK_UPDATE:
return SPA_RESULT_NOT_IMPLEMENTED;
}
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_dec_node_set_event_callback (SpaNode *node,
SpaNodeEventCallback event,
void *user_data)
{
SpaFFMpegDec *this;
if (node == NULL || node->handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaFFMpegDec *) node->handle;
this->event_cb = event;
this->user_data = user_data;
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_dec_node_get_n_ports (SpaNode *node,
unsigned int *n_input_ports,
unsigned int *max_input_ports,
unsigned int *n_output_ports,
unsigned int *max_output_ports)
{
if (node == NULL || node->handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
if (n_input_ports)
*n_input_ports = 1;
if (n_output_ports)
*n_output_ports = 1;
if (max_input_ports)
*max_input_ports = 1;
if (max_output_ports)
*max_output_ports = 1;
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_dec_node_get_port_ids (SpaNode *node,
unsigned int n_input_ports,
uint32_t *input_ids,
unsigned int n_output_ports,
uint32_t *output_ids)
{
if (node == NULL || node->handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
if (n_input_ports > 0 && input_ids != NULL)
input_ids[0] = 0;
if (n_output_ports > 0 && output_ids != NULL)
output_ids[0] = 1;
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_dec_node_add_port (SpaNode *node,
uint32_t port_id)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_ffmpeg_dec_node_remove_port (SpaNode *node,
uint32_t port_id)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_ffmpeg_dec_node_port_enum_formats (SpaNode *node,
uint32_t port_id,
SpaFormat **format,
const SpaFormat *filter,
void **state)
{
SpaFFMpegDec *this;
SpaFFMpegState *s;
int index;
if (node == NULL || node->handle == NULL || format == NULL || state == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaFFMpegDec *) node->handle;
if (!IS_VALID_PORT (port_id))
return SPA_RESULT_INVALID_PORT;
s = &this->state[port_id];
index = (*state == NULL ? 0 : *(int*)state);
switch (index) {
case 0:
spa_format_video_init (SPA_MEDIA_TYPE_VIDEO,
SPA_MEDIA_SUBTYPE_RAW,
&s->format[0]);
break;
default:
return SPA_RESULT_ENUM_END;
}
*format = &s->format[0].format;
*(int*)state = ++index;
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_dec_node_port_set_format (SpaNode *node,
uint32_t port_id,
SpaPortFormatFlags flags,
const SpaFormat *format)
{
SpaFFMpegDec *this;
SpaFFMpegState *state;
SpaResult res;
if (node == NULL || node->handle == NULL || format == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaFFMpegDec *) node->handle;
if (!IS_VALID_PORT (port_id))
return SPA_RESULT_INVALID_PORT;
state = &this->state[port_id];
if (format == NULL) {
state->current_format = NULL;
return SPA_RESULT_OK;
}
if ((res = spa_format_video_parse (format, &state->format[0]) < 0))
return res;
if (!(flags & SPA_PORT_FORMAT_FLAG_TEST_ONLY)) {
memcpy (&state->format[1], &state->format[0], sizeof (SpaFormatVideo));
state->current_format = &state->format[1].format;
}
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_dec_node_port_get_format (SpaNode *node,
uint32_t port_id,
const SpaFormat **format)
{
SpaFFMpegDec *this;
SpaFFMpegState *state;
if (node == NULL || node->handle == NULL || format == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaFFMpegDec *) node->handle;
if (!IS_VALID_PORT (port_id))
return SPA_RESULT_INVALID_PORT;
state = &this->state[port_id];
if (state->current_format == NULL)
return SPA_RESULT_NO_FORMAT;
*format = state->current_format;
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_dec_node_port_get_info (SpaNode *node,
uint32_t port_id,
const SpaPortInfo **info)
{
SpaFFMpegDec *this;
if (node == NULL || node->handle == NULL || info == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaFFMpegDec *) node->handle;
if (!IS_VALID_PORT (port_id))
return SPA_RESULT_INVALID_PORT;
*info = &this->state[port_id].info;
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_dec_node_port_get_props (SpaNode *node,
uint32_t port_id,
SpaProps **props)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_ffmpeg_dec_node_port_set_props (SpaNode *node,
uint32_t port_id,
const SpaProps *props)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_ffmpeg_dec_node_port_use_buffers (SpaNode *node,
uint32_t port_id,
SpaBuffer **buffers,
uint32_t n_buffers)
{
if (node == NULL || node->handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
if (!IS_VALID_PORT (port_id))
return SPA_RESULT_INVALID_PORT;
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_ffmpeg_dec_node_port_alloc_buffers (SpaNode *node,
uint32_t port_id,
SpaAllocParam **params,
uint32_t n_params,
SpaBuffer **buffers,
uint32_t *n_buffers)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_ffmpeg_dec_node_port_reuse_buffer (SpaNode *node,
uint32_t port_id,
uint32_t buffer_id)
{
if (node == NULL || node->handle == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
if (!IS_VALID_PORT (port_id))
return SPA_RESULT_INVALID_PORT;
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_ffmpeg_dec_node_port_get_status (SpaNode *node,
uint32_t port_id,
const SpaPortStatus **status)
{
SpaFFMpegDec *this;
if (node == NULL || node->handle == NULL || status == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaFFMpegDec *) node->handle;
if (!IS_VALID_PORT (port_id))
return SPA_RESULT_INVALID_PORT;
*status = &this->state[port_id].status;
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_dec_node_port_push_input (SpaNode *node,
unsigned int n_info,
SpaPortInputInfo *info)
{
return SPA_RESULT_INVALID_PORT;
}
static SpaResult
spa_ffmpeg_dec_node_port_pull_output (SpaNode *node,
unsigned int n_info,
SpaPortOutputInfo *info)
{
SpaFFMpegDec *this;
SpaFFMpegState *state;
unsigned int i;
bool have_error = false;
if (node == NULL || node->handle == NULL || n_info == 0 || info == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaFFMpegDec *) node->handle;
for (i = 0; i < n_info; i++) {
if (info[i].port_id != OUTPUT_PORT_ID) {
info[i].status = SPA_RESULT_INVALID_PORT;
have_error = true;
continue;
}
state = &this->state[info[i].port_id];
if (state->current_format == NULL) {
info[i].status = SPA_RESULT_NO_FORMAT;
have_error = true;
continue;
}
info[i].status = SPA_RESULT_OK;
}
if (have_error)
return SPA_RESULT_ERROR;
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_dec_node_port_push_event (SpaNode *node,
uint32_t port_id,
SpaNodeEvent *event)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static const SpaNode ffmpeg_dec_node = {
NULL,
sizeof (SpaNode),
NULL,
SPA_NODE_STATE_INIT,
spa_ffmpeg_dec_node_get_props,
spa_ffmpeg_dec_node_set_props,
spa_ffmpeg_dec_node_send_command,
spa_ffmpeg_dec_node_set_event_callback,
spa_ffmpeg_dec_node_get_n_ports,
spa_ffmpeg_dec_node_get_port_ids,
spa_ffmpeg_dec_node_add_port,
spa_ffmpeg_dec_node_remove_port,
spa_ffmpeg_dec_node_port_enum_formats,
spa_ffmpeg_dec_node_port_set_format,
spa_ffmpeg_dec_node_port_get_format,
spa_ffmpeg_dec_node_port_get_info,
spa_ffmpeg_dec_node_port_get_props,
spa_ffmpeg_dec_node_port_set_props,
spa_ffmpeg_dec_node_port_use_buffers,
spa_ffmpeg_dec_node_port_alloc_buffers,
spa_ffmpeg_dec_node_port_reuse_buffer,
spa_ffmpeg_dec_node_port_get_status,
spa_ffmpeg_dec_node_port_push_input,
spa_ffmpeg_dec_node_port_pull_output,
spa_ffmpeg_dec_node_port_push_event,
};
static SpaResult
spa_ffmpeg_dec_get_interface (SpaHandle *handle,
uint32_t interface_id,
void **interface)
{
SpaFFMpegDec *this;
if (handle == NULL || interface == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaFFMpegDec *) handle;
switch (interface_id) {
case SPA_INTERFACE_ID_NODE:
*interface = &this->node;
break;
default:
return SPA_RESULT_UNKNOWN_INTERFACE;
}
return SPA_RESULT_OK;
}
SpaResult
spa_ffmpeg_dec_init (SpaHandle *handle)
{
SpaFFMpegDec *this;
handle->get_interface = spa_ffmpeg_dec_get_interface;
this = (SpaFFMpegDec *) handle;
this->node = ffmpeg_dec_node;
this->node.handle = handle;
this->props[1].props.n_prop_info = PROP_ID_LAST;
this->props[1].props.prop_info = prop_info;
reset_ffmpeg_dec_props (&this->props[1]);
this->state[INPUT_PORT_ID].info.flags = SPA_PORT_INFO_FLAG_NONE;
this->state[INPUT_PORT_ID].status.flags = SPA_PORT_STATUS_FLAG_NONE;
this->state[OUTPUT_PORT_ID].info.flags = SPA_PORT_INFO_FLAG_NONE;
this->state[OUTPUT_PORT_ID].status.flags = SPA_PORT_STATUS_FLAG_NONE;
return SPA_RESULT_OK;
}