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Make new USE_BUFFERS command

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Make a new USE_BUFFERS command to atomically send a buffer array to the
remote client. We can use this to then clean up an old array and go to
the PAUSED state if possible.
Work on formats. Make one structure that can hold all video formats.
Work on pipeline suspend and resume.
Add jpeg support to v4l2.
Work on enum_formats with a filter in v4l2.
This commit is contained in:
Wim Taymans 2016-08-26 17:43:48 +02:00
parent 7e858ff694
commit b67c216a04
24 changed files with 688 additions and 514 deletions
Download patch file Download diff file Expand all files Collapse all files

78
spa/lib/control.c
View file

@ -456,6 +456,27 @@ iter_parse_set_format (struct stack_iter *si, SpaControlCmdSetFormat *cmd)
cmd->format = parse_format (mem, p, SPA_PTR_TO_INT (cmd->format));
}
static void
iter_parse_use_buffers (struct stack_iter *si, SpaControlCmdUseBuffers *cmd)
{
void *p;
int i;
p = si->data;
memcpy (cmd, p, sizeof (SpaControlCmdUseBuffers));
if (cmd->buffers)
cmd->buffers = SPA_MEMBER (p, SPA_PTR_TO_INT (cmd->buffers), SpaBuffer *);
for (i = 0; i < cmd->n_buffers; i++) {
SpaMemoryChunk *mc;
SpaMemory *mem;
mc = SPA_MEMBER (p, SPA_PTR_TO_INT (cmd->buffers[i]), SpaMemoryChunk);
mem = spa_memory_find (&mc->mem);
cmd->buffers[i] = SPA_MEMBER (spa_memory_ensure_ptr (mem), mc->offset, SpaBuffer);
}
}
SpaResult
spa_control_iter_parse_cmd (SpaControlIter *iter,
void *command)
@ -542,16 +563,8 @@ spa_control_iter_parse_cmd (SpaControlIter *iter,
memcpy (command, si->data, sizeof (SpaControlCmdRemoveMem));
break;
case SPA_CONTROL_CMD_ADD_BUFFER:
if (si->size < sizeof (SpaControlCmdAddBuffer))
return SPA_RESULT_ERROR;
memcpy (command, si->data, sizeof (SpaControlCmdAddBuffer));
break;
case SPA_CONTROL_CMD_REMOVE_BUFFER:
if (si->size < sizeof (SpaControlCmdRemoveBuffer))
return SPA_RESULT_ERROR;
memcpy (command, si->data, sizeof (SpaControlCmdRemoveBuffer));
case SPA_CONTROL_CMD_USE_BUFFERS:
iter_parse_use_buffers (si, command);
break;
case SPA_CONTROL_CMD_PROCESS_BUFFER:
@ -1077,6 +1090,41 @@ builder_add_set_format (struct stack_builder *sb, SpaControlCmdSetFormat *sf)
sf->format = SPA_INT_TO_PTR (SPA_PTRDIFF (p, sf));
}
static void
builder_add_use_buffers (struct stack_builder *sb, SpaControlCmdUseBuffers *ub)
{
size_t len;
void *p;
int i;
SpaMemoryChunk **bmc;
SpaControlCmdUseBuffers *d;
/* calculate length */
/* port_id + format + mask */
len = sizeof (SpaControlCmdUseBuffers);
len += ub->n_buffers * sizeof (SpaBuffer *);
len += ub->n_buffers * sizeof (SpaMemoryChunk);
p = builder_add_cmd (sb, SPA_CONTROL_CMD_USE_BUFFERS, len);
memcpy (p, ub, sizeof (SpaControlCmdUseBuffers));
d = p;
p = SPA_MEMBER (d, sizeof (SpaControlCmdUseBuffers), void);
bmc = p;
if (d->n_buffers)
d->buffers = SPA_INT_TO_PTR (SPA_PTRDIFF (bmc, d));
else
d->buffers = 0;
p = SPA_MEMBER (p, sizeof (SpaMemoryChunk*) * ub->n_buffers, void);
for (i = 0; i < ub->n_buffers; i++) {
memcpy (p, &ub->buffers[i]->mem, sizeof (SpaMemoryChunk));
bmc[i] = SPA_INT_TO_PTR (SPA_PTRDIFF (p, d));
p = SPA_MEMBER (p, sizeof (SpaMemoryChunk), void);
}
}
/**
* spa_control_builder_add_cmd:
* @builder: a #SpaControlBuilder
@ -1168,14 +1216,8 @@ spa_control_builder_add_cmd (SpaControlBuilder *builder,
memcpy (p, command, sizeof (SpaControlCmdRemoveMem));
break;
case SPA_CONTROL_CMD_ADD_BUFFER:
p = builder_add_cmd (sb, cmd, sizeof (SpaControlCmdAddBuffer));
memcpy (p, command, sizeof (SpaControlCmdAddBuffer));
break;
case SPA_CONTROL_CMD_REMOVE_BUFFER:
p = builder_add_cmd (sb, cmd, sizeof (SpaControlCmdRemoveBuffer));
memcpy (p, command, sizeof (SpaControlCmdRemoveBuffer));
case SPA_CONTROL_CMD_USE_BUFFERS:
builder_add_use_buffers (sb, command);
break;
case SPA_CONTROL_CMD_PROCESS_BUFFER: