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pipewire/spa/plugins/ffmpeg/ffmpeg-enc.c
Wim Taymans d3682067fa node: remove node state 
Remove the node state. The state of the node is based on the state
of the ports, which can be derived directly from calling the port
methods. Track this state in the Port instead.
Add a mixer module that puts a mixer in from of audio sinks. This allows
multiple clients to play on one sink (still has some bugs). do some
fixes in the mixer and the scheduler to make this work.
2017-04-08 20:33:54 +02:00

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/* Spa FFMpeg Encoder
* 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/log.h>
#include <spa/type-map.h>
#include <spa/node.h>
#include <spa/video/format-utils.h>
#include <lib/props.h>
typedef struct _SpaFFMpegEnc SpaFFMpegEnc;
#define IS_VALID_PORT(this,d,id) ((id) == 0)
#define MAX_BUFFERS 32
typedef struct _FFMpegBuffer FFMpegBuffer;
struct _FFMpegBuffer {
SpaBuffer buffer;
SpaMeta metas[1];
SpaMetaHeader header;
SpaData datas[1];
SpaFFMpegEnc *enc;
SpaBuffer *imported;
bool outstanding;
FFMpegBuffer *next;
};
typedef struct {
bool have_format;
SpaVideoInfo current_format;
bool have_buffers;
FFMpegBuffer buffers[MAX_BUFFERS];
SpaPortInfo info;
SpaPortIO *io;
} SpaFFMpegPort;
typedef struct {
uint32_t node;
SpaTypeMediaType media_type;
SpaTypeMediaSubtype media_subtype;
SpaTypeFormatVideo format_video;
SpaTypeCommandNode command_node;
} Type;
static inline void
init_type (Type *type, SpaTypeMap *map)
{
type->node = spa_type_map_get_id (map, SPA_TYPE__Node);
spa_type_media_type_map (map, &type->media_type);
spa_type_media_subtype_map (map, &type->media_subtype);
spa_type_format_video_map (map, &type->format_video);
spa_type_command_node_map (map, &type->command_node);
}
struct _SpaFFMpegEnc {
SpaHandle handle;
SpaNode node;
Type type;
SpaTypeMap *map;
SpaLog *log;
SpaEventNodeCallback event_cb;
void *user_data;
SpaFFMpegPort in_ports[1];
SpaFFMpegPort out_ports[1];
bool started;
};
static SpaResult
spa_ffmpeg_enc_node_get_props (SpaNode *node,
SpaProps **props)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_ffmpeg_enc_node_set_props (SpaNode *node,
const SpaProps *props)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_ffmpeg_enc_node_send_command (SpaNode *node,
SpaCommand *command)
{
SpaFFMpegEnc *this;
if (node == NULL || command == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaFFMpegEnc, node);
if (SPA_COMMAND_TYPE (command) == this->type.command_node.Start) {
this->started = true;
}
else if (SPA_COMMAND_TYPE (command) == this->type.command_node.Pause) {
this->started = false;
}
else
return SPA_RESULT_NOT_IMPLEMENTED;
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_enc_node_set_event_callback (SpaNode *node,
SpaEventNodeCallback event,
void *user_data)
{
SpaFFMpegEnc *this;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaFFMpegEnc, node);
this->event_cb = event;
this->user_data = user_data;
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_enc_node_get_n_ports (SpaNode *node,
uint32_t *n_input_ports,
uint32_t *max_input_ports,
uint32_t *n_output_ports,
uint32_t *max_output_ports)
{
if (node == 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_enc_node_get_port_ids (SpaNode *node,
uint32_t n_input_ports,
uint32_t *input_ids,
uint32_t n_output_ports,
uint32_t *output_ids)
{
if (node == 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] = 0;
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_enc_node_add_port (SpaNode *node,
SpaDirection direction,
uint32_t port_id)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_ffmpeg_enc_node_remove_port (SpaNode *node,
SpaDirection direction,
uint32_t port_id)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_ffmpeg_enc_node_port_enum_formats (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaFormat **format,
const SpaFormat *filter,
uint32_t index)
{
//SpaFFMpegEnc *this;
//SpaFFMpegPort *port;
if (node == NULL || format == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
//this = SPA_CONTAINER_OF (node, SpaFFMpegEnc, node);
if (!IS_VALID_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
//port = direction == SPA_DIRECTION_INPUT ? &this->in_ports[port_id] : &this->out_ports[port_id];
switch (index) {
case 0:
break;
default:
return SPA_RESULT_ENUM_END;
}
*format = NULL;
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_enc_node_port_set_format (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaPortFormatFlags flags,
const SpaFormat *format)
{
SpaFFMpegEnc *this;
SpaFFMpegPort *port;
if (node == NULL || format == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaFFMpegEnc, node);
if (!IS_VALID_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
port = direction == SPA_DIRECTION_INPUT ? &this->in_ports[port_id] : &this->out_ports[port_id];
if (format == NULL) {
port->have_format = false;
return SPA_RESULT_OK;
} else {
SpaVideoInfo info = { SPA_FORMAT_MEDIA_TYPE (format),
SPA_FORMAT_MEDIA_SUBTYPE (format), };
if (info.media_type != this->type.media_type.video &&
info.media_subtype != this->type.media_subtype.raw)
return SPA_RESULT_INVALID_MEDIA_TYPE;
if (!spa_format_video_raw_parse (format, &info.info.raw, &this->type.format_video))
return SPA_RESULT_INVALID_MEDIA_TYPE;
if (!(flags & SPA_PORT_FORMAT_FLAG_TEST_ONLY)) {
port->current_format = info;
port->have_format = true;
}
}
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_enc_node_port_get_format (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
const SpaFormat **format)
{
SpaFFMpegEnc *this;
SpaFFMpegPort *port;
if (node == NULL || format == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaFFMpegEnc, node);
if (!IS_VALID_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
port = direction == SPA_DIRECTION_INPUT ? &this->in_ports[port_id] : &this->out_ports[port_id];
if (!port->have_format)
return SPA_RESULT_NO_FORMAT;
*format = NULL;
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_enc_node_port_get_info (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
const SpaPortInfo **info)
{
SpaFFMpegEnc *this;
SpaFFMpegPort *port;
if (node == NULL || info == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaFFMpegEnc, node);
if (!IS_VALID_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
port = direction == SPA_DIRECTION_INPUT ? &this->in_ports[port_id] : &this->out_ports[port_id];
*info = &port->info;
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_enc_node_port_get_props (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaProps **props)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_ffmpeg_enc_node_port_set_props (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
const SpaProps *props)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_ffmpeg_enc_node_port_use_buffers (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaBuffer **buffers,
uint32_t n_buffers)
{
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
if (!IS_VALID_PORT (node, direction, port_id))
return SPA_RESULT_INVALID_PORT;
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_ffmpeg_enc_node_port_alloc_buffers (SpaNode *node,
SpaDirection direction,
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_enc_node_port_set_io (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaPortIO *io)
{
SpaFFMpegEnc *this;
SpaFFMpegPort *port;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaFFMpegEnc, node);
if (!IS_VALID_PORT (this, direction, port_id))
return SPA_RESULT_INVALID_PORT;
port = direction == SPA_DIRECTION_INPUT ? &this->in_ports[port_id] : &this->out_ports[port_id];
port->io = io;
return SPA_RESULT_OK;
}
static SpaResult
spa_ffmpeg_enc_node_port_reuse_buffer (SpaNode *node,
uint32_t port_id,
uint32_t buffer_id)
{
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
if (port_id != 0)
return SPA_RESULT_INVALID_PORT;
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_ffmpeg_enc_node_port_send_command (SpaNode *node,
SpaDirection direction,
uint32_t port_id,
SpaCommand *command)
{
return SPA_RESULT_NOT_IMPLEMENTED;
}
static SpaResult
spa_ffmpeg_enc_node_process_input (SpaNode *node)
{
return SPA_RESULT_INVALID_PORT;
}
static SpaResult
spa_ffmpeg_enc_node_process_output (SpaNode *node)
{
SpaFFMpegEnc *this;
SpaFFMpegPort *port;
SpaPortIO *output;
if (node == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = SPA_CONTAINER_OF (node, SpaFFMpegEnc, node);
if ((output = this->out_ports[0].io) == NULL)
return SPA_RESULT_OK;
port = &this->out_ports[0];
if (!port->have_format) {
output->status = SPA_RESULT_NO_FORMAT;
return SPA_RESULT_ERROR;
}
output->status = SPA_RESULT_OK;
return SPA_RESULT_OK;
}
static const SpaNode ffmpeg_enc_node = {
sizeof (SpaNode),
NULL,
spa_ffmpeg_enc_node_get_props,
spa_ffmpeg_enc_node_set_props,
spa_ffmpeg_enc_node_send_command,
spa_ffmpeg_enc_node_set_event_callback,
spa_ffmpeg_enc_node_get_n_ports,
spa_ffmpeg_enc_node_get_port_ids,
spa_ffmpeg_enc_node_add_port,
spa_ffmpeg_enc_node_remove_port,
spa_ffmpeg_enc_node_port_enum_formats,
spa_ffmpeg_enc_node_port_set_format,
spa_ffmpeg_enc_node_port_get_format,
spa_ffmpeg_enc_node_port_get_info,
spa_ffmpeg_enc_node_port_get_props,
spa_ffmpeg_enc_node_port_set_props,
spa_ffmpeg_enc_node_port_use_buffers,
spa_ffmpeg_enc_node_port_alloc_buffers,
spa_ffmpeg_enc_node_port_set_io,
spa_ffmpeg_enc_node_port_reuse_buffer,
spa_ffmpeg_enc_node_port_send_command,
spa_ffmpeg_enc_node_process_input,
spa_ffmpeg_enc_node_process_output,
};
static SpaResult
spa_ffmpeg_enc_get_interface (SpaHandle *handle,
uint32_t interface_id,
void **interface)
{
SpaFFMpegEnc *this;
if (handle == NULL || interface == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
this = (SpaFFMpegEnc *) handle;
if (interface_id == this->type.node)
*interface = &this->node;
else
return SPA_RESULT_UNKNOWN_INTERFACE;
return SPA_RESULT_OK;
}
SpaResult
spa_ffmpeg_enc_init (SpaHandle *handle,
const SpaDict *info,
const SpaSupport *support,
uint32_t n_support)
{
SpaFFMpegEnc *this;
uint32_t i;
handle->get_interface = spa_ffmpeg_enc_get_interface;
this = (SpaFFMpegEnc *) handle;
for (i = 0; i < n_support; i++) {
if (strcmp (support[i].type, SPA_TYPE__TypeMap) == 0)
this->map = support[i].data;
else if (strcmp (support[i].type, SPA_TYPE__Log) == 0)
this->log = support[i].data;
}
if (this->map == NULL) {
spa_log_error (this->log, "a type-map is needed");
return SPA_RESULT_ERROR;
}
this->node = ffmpeg_enc_node;
this->in_ports[0].info.flags = SPA_PORT_INFO_FLAG_NONE;
this->out_ports[0].info.flags = SPA_PORT_INFO_FLAG_NONE;
return SPA_RESULT_OK;
}
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