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command: split filter changing in two functions 

One function sets a raw filter list, the other allows "editing" the
filter list.
This commit is contained in:
wm4 2013-08-03 13:38:40 +02:00
parent d1c563c0a9
commit ef3c5a75ab
1 changed files with 50 additions and 40 deletions
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90
core/command.c
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@ -1979,58 +1979,68 @@ static bool reinit_filters(MPContext *mpctx, enum stream_type mediatype)
return false;
}
static void change_filters(MPContext *mpctx, enum stream_type mediatype,
static const char *filter_opt[STREAM_TYPE_COUNT] = {
[STREAM_VIDEO] = "vf",
[STREAM_AUDIO] = "af",
};
static int set_filters(struct MPContext *mpctx, enum stream_type mediatype,
struct m_obj_settings *new_chain)
{
bstr option = bstr0(filter_opt[mediatype]);
struct m_config_option *co = m_config_get_co(mpctx->mconfig, option);
if (!co)
return -1;
struct m_obj_settings **list = co->data;
struct m_obj_settings *old_settings = *list;
*list = NULL;
m_option_copy(co->opt, list, &new_chain);
bool success = reinit_filters(mpctx, mediatype);
if (success) {
m_option_free(co->opt, &old_settings);
} else {
m_option_free(co->opt, list);
*list = old_settings;
reinit_filters(mpctx, mediatype);
}
if (mediatype == STREAM_VIDEO)
mp_force_video_refresh(mpctx);
return success ? 0 : -1;
}
static int edit_filters(struct MPContext *mpctx, enum stream_type mediatype,
const char *cmd, const char *arg)
{
struct MPOpts *opts = mpctx->opts;
struct m_config *conf = mpctx->mconfig;
struct m_obj_settings *old_settings = NULL;
bool success = false;
bool need_refresh = false;
const char *option;
struct m_obj_settings **list;
switch (mediatype) {
case STREAM_VIDEO:
option = "vf";
list = &opts->vf_settings;
break;
case STREAM_AUDIO:
option = "af";
list = &opts->af_settings;
break;
default:
abort();
}
bstr option = bstr0(filter_opt[mediatype]);
struct m_config_option *co = m_config_get_co(mpctx->mconfig, option);
if (!co)
return -1;
// The option parser is used to modify the filter list itself.
char optname[20];
snprintf(optname, sizeof(optname), "%s-%s", option, cmd);
const struct m_option *type = m_config_get_option(conf, bstr0(optname));
snprintf(optname, sizeof(optname), "%.*s-%s", BSTR_P(option), cmd);
// Backup old settings, in case it fails
m_option_copy(type, &old_settings, list);
struct m_obj_settings *new_chain = NULL;
m_option_copy(co->opt, &new_chain, co->data);
if (m_config_set_option0(conf, optname, arg) >= 0) {
need_refresh = true;
success = reinit_filters(mpctx, mediatype);
}
int r = m_option_parse(co->opt, bstr0(optname), bstr0(arg), &new_chain);
if (r >= 0)
r = set_filters(mpctx, mediatype, new_chain);
if (!success) {
m_option_copy(type, list, &old_settings);
if (need_refresh)
reinit_filters(mpctx, mediatype);
}
m_option_free(type, &old_settings);
m_option_free(co->opt, &new_chain);
if (need_refresh && mediatype == STREAM_VIDEO)
mp_force_video_refresh(mpctx);
return r >= 0 ? 0 : -1;
}
static void change_video_filters(MPContext *mpctx, const char *cmd,
const char *arg)
{
change_filters(mpctx, STREAM_VIDEO, cmd, arg);
edit_filters(mpctx, STREAM_VIDEO, cmd, arg);
}
void run_command(MPContext *mpctx, mp_cmd_t *cmd)
@ -2554,11 +2564,11 @@ void run_command(MPContext *mpctx, mp_cmd_t *cmd)
break;
case MP_CMD_AF:
change_filters(mpctx, STREAM_AUDIO, cmd->args[0].v.s, cmd->args[1].v.s);
edit_filters(mpctx, STREAM_AUDIO, cmd->args[0].v.s, cmd->args[1].v.s);
break;
case MP_CMD_VF:
change_video_filters(mpctx, cmd->args[0].v.s, cmd->args[1].v.s);
edit_filters(mpctx, STREAM_VIDEO, cmd->args[0].v.s, cmd->args[1].v.s);
break;
case MP_CMD_COMMAND_LIST: {