* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-/* #define DEBUG */
-
#include "libavutil/avstring.h"
#include "libavutil/channel_layout.h"
#include "libavutil/common.h"
#include "libavutil/imgutils.h"
+#include "libavutil/internal.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/rational.h"
#include "internal.h"
#include "video.h"
-unsigned avfilter_version(void) {
+unsigned avfilter_version(void)
+{
return LIBAVFILTER_VERSION_INT;
}
*pads = av_realloc(*pads, sizeof(AVFilterPad) * (*count + 1));
*links = av_realloc(*links, sizeof(AVFilterLink*) * (*count + 1));
- memmove(*pads +idx+1, *pads +idx, sizeof(AVFilterPad) * (*count-idx));
- memmove(*links+idx+1, *links+idx, sizeof(AVFilterLink*) * (*count-idx));
- memcpy(*pads+idx, newpad, sizeof(AVFilterPad));
+ memmove(*pads + idx + 1, *pads + idx, sizeof(AVFilterPad) * (*count - idx));
+ memmove(*links + idx + 1, *links + idx, sizeof(AVFilterLink*) * (*count - idx));
+ memcpy(*pads + idx, newpad, sizeof(AVFilterPad));
(*links)[idx] = NULL;
(*count)++;
- for (i = idx+1; i < *count; i++)
+ for (i = idx + 1; i < *count; i++)
if (*links[i])
(*(unsigned *)((uint8_t *) *links[i] + padidx_off))++;
}
return AVERROR(EINVAL);
}
- src->outputs[srcpad] =
- dst-> inputs[dstpad] = link = av_mallocz(sizeof(AVFilterLink));
+ link = av_mallocz(sizeof(*link));
+ if (!link)
+ return AVERROR(ENOMEM);
+
+ src->outputs[srcpad] = dst->inputs[dstpad] = link;
link->src = src;
link->dst = dst;
}
/* re-hookup the link to the new destination filter we inserted */
- link->dst = filt;
- link->dstpad = &filt->input_pads[filt_srcpad_idx];
+ link->dst = filt;
+ link->dstpad = &filt->input_pads[filt_srcpad_idx];
filt->inputs[filt_srcpad_idx] = link;
/* if any information on supported media formats already exists on the
* link, we need to preserve that */
if (link->out_formats)
ff_formats_changeref(&link->out_formats,
- &filt->outputs[filt_dstpad_idx]->out_formats);
+ &filt->outputs[filt_dstpad_idx]->out_formats);
if (link->out_samplerates)
ff_formats_changeref(&link->out_samplerates,
- &filt->outputs[filt_dstpad_idx]->out_samplerates);
+ &filt->outputs[filt_dstpad_idx]->out_samplerates);
if (link->out_channel_layouts)
ff_channel_layouts_changeref(&link->out_channel_layouts,
&filt->outputs[filt_dstpad_idx]->out_channel_layouts);
if ((config_link = link->dstpad->config_props))
if ((ret = config_link(link)) < 0) {
- av_log(link->src, AV_LOG_ERROR,
+ av_log(link->dst, AV_LOG_ERROR,
"Failed to configure input pad on %s\n",
link->dst->name);
return ret;
return min;
}
-#define MAX_REGISTERED_AVFILTERS_NB 64
-
-static AVFilter *registered_avfilters[MAX_REGISTERED_AVFILTERS_NB + 1];
-
-static int next_registered_avfilter_idx = 0;
+static AVFilter *first_filter;
+#if !FF_API_NOCONST_GET_NAME
+const
+#endif
AVFilter *avfilter_get_by_name(const char *name)
{
- int i;
+ const AVFilter *f = NULL;
+
+ if (!name)
+ return NULL;
- for (i = 0; registered_avfilters[i]; i++)
- if (!strcmp(registered_avfilters[i]->name, name))
- return registered_avfilters[i];
+ while ((f = avfilter_next(f)))
+ if (!strcmp(f->name, name))
+ return f;
return NULL;
}
int avfilter_register(AVFilter *filter)
{
- if (next_registered_avfilter_idx == MAX_REGISTERED_AVFILTERS_NB)
- return -1;
-
- registered_avfilters[next_registered_avfilter_idx++] = filter;
+ AVFilter **f = &first_filter;
+ while (*f)
+ f = &(*f)->next;
+ *f = filter;
+ filter->next = NULL;
return 0;
}
+const AVFilter *avfilter_next(const AVFilter *prev)
+{
+ return prev ? prev->next : first_filter;
+}
+
+#if FF_API_OLD_FILTER_REGISTER
AVFilter **av_filter_next(AVFilter **filter)
{
- return filter ? ++filter : ®istered_avfilters[0];
+ return filter ? &(*filter)->next : &first_filter;
}
void avfilter_uninit(void)
{
- memset(registered_avfilters, 0, sizeof(registered_avfilters));
- next_registered_avfilter_idx = 0;
}
+#endif
-static int pad_count(const AVFilterPad *pads)
+int avfilter_pad_count(const AVFilterPad *pads)
{
int count;
if (!pads)
return 0;
- for(count = 0; pads->name; count ++) pads ++;
+ for (count = 0; pads->name; count++)
+ pads++;
return count;
}
return filter->filter->name;
}
+static void *filter_child_next(void *obj, void *prev)
+{
+ AVFilterContext *ctx = obj;
+ if (!prev && ctx->filter && ctx->filter->priv_class && ctx->priv)
+ return ctx->priv;
+ return NULL;
+}
+
+static const AVClass *filter_child_class_next(const AVClass *prev)
+{
+ const AVFilter *f = NULL;
+
+ while (prev && (f = avfilter_next(f)))
+ if (f->priv_class == prev)
+ break;
+
+ while ((f = avfilter_next(f)))
+ if (f->priv_class)
+ return f->priv_class;
+
+ return NULL;
+}
+
+#define OFFSET(x) offsetof(AVFilterContext, x)
+#define FLAGS AV_OPT_FLAG_VIDEO_PARAM
+static const AVOption avfilter_options[] = {
+ { "thread_type", "Allowed thread types", OFFSET(thread_type), AV_OPT_TYPE_FLAGS,
+ { .i64 = AVFILTER_THREAD_SLICE }, 0, INT_MAX, FLAGS, "thread_type" },
+ { "slice", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AVFILTER_THREAD_SLICE }, .unit = "thread_type" },
+ { NULL },
+};
+
static const AVClass avfilter_class = {
.class_name = "AVFilter",
.item_name = filter_name,
.version = LIBAVUTIL_VERSION_INT,
+ .child_next = filter_child_next,
+ .child_class_next = filter_child_class_next,
+ .option = avfilter_options,
};
-int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name)
+static int default_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg,
+ int *ret, int nb_jobs)
+{
+ int i;
+
+ for (i = 0; i < nb_jobs; i++) {
+ int r = func(ctx, arg, i, nb_jobs);
+ if (ret)
+ ret[i] = r;
+ }
+ return 0;
+}
+
+AVFilterContext *ff_filter_alloc(const AVFilter *filter, const char *inst_name)
{
AVFilterContext *ret;
- *filter_ctx = NULL;
if (!filter)
- return AVERROR(EINVAL);
+ return NULL;
ret = av_mallocz(sizeof(AVFilterContext));
if (!ret)
- return AVERROR(ENOMEM);
+ return NULL;
ret->av_class = &avfilter_class;
ret->filter = filter;
goto err;
}
+ av_opt_set_defaults(ret);
if (filter->priv_class) {
*(const AVClass**)ret->priv = filter->priv_class;
av_opt_set_defaults(ret->priv);
}
- ret->nb_inputs = pad_count(filter->inputs);
+ ret->internal = av_mallocz(sizeof(*ret->internal));
+ if (!ret->internal)
+ goto err;
+ ret->internal->execute = default_execute;
+
+ ret->nb_inputs = avfilter_pad_count(filter->inputs);
if (ret->nb_inputs ) {
ret->input_pads = av_malloc(sizeof(AVFilterPad) * ret->nb_inputs);
if (!ret->input_pads)
goto err;
}
- ret->nb_outputs = pad_count(filter->outputs);
+ ret->nb_outputs = avfilter_pad_count(filter->outputs);
if (ret->nb_outputs) {
ret->output_pads = av_malloc(sizeof(AVFilterPad) * ret->nb_outputs);
if (!ret->output_pads)
goto err;
}
#if FF_API_FOO_COUNT
+FF_DISABLE_DEPRECATION_WARNINGS
ret->output_count = ret->nb_outputs;
ret->input_count = ret->nb_inputs;
+FF_ENABLE_DEPRECATION_WARNINGS
#endif
- *filter_ctx = ret;
- return 0;
+ return ret;
err:
av_freep(&ret->inputs);
av_freep(&ret->output_pads);
ret->nb_outputs = 0;
av_freep(&ret->priv);
+ av_freep(&ret->internal);
av_free(ret);
- return AVERROR(ENOMEM);
+ return NULL;
+}
+
+#if FF_API_AVFILTER_OPEN
+int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name)
+{
+ *filter_ctx = ff_filter_alloc(filter, inst_name);
+ return *filter_ctx ? 0 : AVERROR(ENOMEM);
+}
+#endif
+
+static void free_link(AVFilterLink *link)
+{
+ if (!link)
+ return;
+
+ if (link->src)
+ link->src->outputs[link->srcpad - link->src->output_pads] = NULL;
+ if (link->dst)
+ link->dst->inputs[link->dstpad - link->dst->input_pads] = NULL;
+
+ ff_formats_unref(&link->in_formats);
+ ff_formats_unref(&link->out_formats);
+ ff_formats_unref(&link->in_samplerates);
+ ff_formats_unref(&link->out_samplerates);
+ ff_channel_layouts_unref(&link->in_channel_layouts);
+ ff_channel_layouts_unref(&link->out_channel_layouts);
+ av_freep(&link);
}
void avfilter_free(AVFilterContext *filter)
{
int i;
- AVFilterLink *link;
+
+ if (filter->graph)
+ ff_filter_graph_remove_filter(filter->graph, filter);
if (filter->filter->uninit)
filter->filter->uninit(filter);
for (i = 0; i < filter->nb_inputs; i++) {
- if ((link = filter->inputs[i])) {
- if (link->src)
- link->src->outputs[link->srcpad - link->src->output_pads] = NULL;
- ff_formats_unref(&link->in_formats);
- ff_formats_unref(&link->out_formats);
- ff_formats_unref(&link->in_samplerates);
- ff_formats_unref(&link->out_samplerates);
- ff_channel_layouts_unref(&link->in_channel_layouts);
- ff_channel_layouts_unref(&link->out_channel_layouts);
- }
- av_freep(&link);
+ free_link(filter->inputs[i]);
}
for (i = 0; i < filter->nb_outputs; i++) {
- if ((link = filter->outputs[i])) {
- if (link->dst)
- link->dst->inputs[link->dstpad - link->dst->input_pads] = NULL;
- ff_formats_unref(&link->in_formats);
- ff_formats_unref(&link->out_formats);
- ff_formats_unref(&link->in_samplerates);
- ff_formats_unref(&link->out_samplerates);
- ff_channel_layouts_unref(&link->in_channel_layouts);
- ff_channel_layouts_unref(&link->out_channel_layouts);
- }
- av_freep(&link);
+ free_link(filter->outputs[i]);
}
if (filter->filter->priv_class)
av_freep(&filter->inputs);
av_freep(&filter->outputs);
av_freep(&filter->priv);
+ av_freep(&filter->internal);
av_free(filter);
}
return 0;
}
+#if FF_API_AVFILTER_INIT_FILTER
int avfilter_init_filter(AVFilterContext *filter, const char *args, void *opaque)
+{
+ return avfilter_init_str(filter, args);
+}
+#endif
+
+int avfilter_init_dict(AVFilterContext *ctx, AVDictionary **options)
+{
+ int ret = 0;
+
+ ret = av_opt_set_dict(ctx, options);
+ if (ret < 0) {
+ av_log(ctx, AV_LOG_ERROR, "Error applying generic filter options.\n");
+ return ret;
+ }
+
+ if (ctx->filter->flags & AVFILTER_FLAG_SLICE_THREADS &&
+ ctx->thread_type & ctx->graph->thread_type & AVFILTER_THREAD_SLICE &&
+ ctx->graph->internal->thread_execute) {
+ ctx->thread_type = AVFILTER_THREAD_SLICE;
+ ctx->internal->execute = ctx->graph->internal->thread_execute;
+ } else {
+ ctx->thread_type = 0;
+ }
+
+ if (ctx->filter->priv_class) {
+ ret = av_opt_set_dict(ctx->priv, options);
+ if (ret < 0) {
+ av_log(ctx, AV_LOG_ERROR, "Error applying options to the filter.\n");
+ return ret;
+ }
+ }
+
+ if (ctx->filter->init)
+ ret = ctx->filter->init(ctx);
+ else if (ctx->filter->init_dict)
+ ret = ctx->filter->init_dict(ctx, options);
+
+ return ret;
+}
+
+int avfilter_init_str(AVFilterContext *filter, const char *args)
{
AVDictionary *options = NULL;
AVDictionaryEntry *e;
- int ret=0;
+ int ret = 0;
+
+ if (args && *args) {
+ if (!filter->filter->priv_class) {
+ av_log(filter, AV_LOG_ERROR, "This filter does not take any "
+ "options, but options were provided: %s.\n", args);
+ return AVERROR(EINVAL);
+ }
- if (args && *args && filter->filter->priv_class) {
#if FF_API_OLD_FILTER_OPTS
if (!strcmp(filter->filter->name, "scale") &&
- strchr(args, ':') < strchr(args, '=')) {
+ strchr(args, ':') && strchr(args, ':') < strchr(args, '=')) {
/* old w:h:flags=<flags> syntax */
char *copy = av_strdup(args);
char *p;
} else if (!strcmp(filter->filter->name, "format") ||
!strcmp(filter->filter->name, "noformat") ||
!strcmp(filter->filter->name, "frei0r") ||
- !strcmp(filter->filter->name, "frei0r_src")) {
+ !strcmp(filter->filter->name, "frei0r_src") ||
+ !strcmp(filter->filter->name, "ocv")) {
/* a hack for compatibility with the old syntax
* replace colons with |s */
char *copy = av_strdup(args);
goto fail;
}
- if (!strcmp(filter->filter->name, "frei0r"))
+ if (!strcmp(filter->filter->name, "frei0r") ||
+ !strcmp(filter->filter->name, "ocv"))
nb_leading = 1;
else if (!strcmp(filter->filter->name, "frei0r_src"))
nb_leading = 3;
}
}
- if (filter->filter->priv_class) {
- ret = av_opt_set_dict(filter->priv, &options);
- if (ret < 0) {
- av_log(filter, AV_LOG_ERROR, "Error applying options to the filter.\n");
- goto fail;
- }
- }
-
- if (filter->filter->init)
- ret = filter->filter->init(filter, args);
- else if (filter->filter->init_dict)
- ret = filter->filter->init_dict(filter, &options);
+ ret = avfilter_init_dict(filter, &options);
if (ret < 0)
goto fail;
return ret;
}
-const char *avfilter_pad_get_name(AVFilterPad *pads, int pad_idx)
+const char *avfilter_pad_get_name(const AVFilterPad *pads, int pad_idx)
{
return pads[pad_idx].name;
}
-enum AVMediaType avfilter_pad_get_type(AVFilterPad *pads, int pad_idx)
+enum AVMediaType avfilter_pad_get_type(const AVFilterPad *pads, int pad_idx)
{
return pads[pad_idx].type;
}
{
int (*filter_frame)(AVFilterLink *, AVFrame *);
AVFilterPad *dst = link->dstpad;
- AVFrame *out;
+ AVFrame *out = NULL;
+ int ret;
FF_DPRINTF_START(NULL, filter_frame);
ff_dlog_link(NULL, link, 1);
case AVMEDIA_TYPE_AUDIO:
out = ff_get_audio_buffer(link, frame->nb_samples);
break;
- default: return AVERROR(EINVAL);
+ default:
+ ret = AVERROR(EINVAL);
+ goto fail;
}
if (!out) {
- av_frame_free(&frame);
- return AVERROR(ENOMEM);
+ ret = AVERROR(ENOMEM);
+ goto fail;
}
- av_frame_copy_props(out, frame);
+
+ ret = av_frame_copy_props(out, frame);
+ if (ret < 0)
+ goto fail;
switch (link->type) {
case AVMEDIA_TYPE_VIDEO:
av_get_channel_layout_nb_channels(frame->channel_layout),
frame->format);
break;
- default: return AVERROR(EINVAL);
+ default:
+ ret = AVERROR(EINVAL);
+ goto fail;
}
av_frame_free(&frame);
out = frame;
return filter_frame(link, out);
+
+fail:
+ av_frame_free(&out);
+ av_frame_free(&frame);
+ return ret;
+}
+
+const AVClass *avfilter_get_class(void)
+{
+ return &avfilter_class;
}
projects / ffmpeg / blobdiff