* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-/* #define DEBUG */
-
+#include "libavutil/avassert.h"
+#include "libavutil/avstring.h"
+#include "libavutil/buffer.h"
+#include "libavutil/channel_layout.h"
+#include "libavutil/common.h"
+#include "libavutil/hwcontext.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/internal.h"
+#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/rational.h"
-#include "libavutil/audioconvert.h"
+#include "libavutil/samplefmt.h"
+#include "audio.h"
#include "avfilter.h"
#include "formats.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))++;
}
{
AVFilterLink *link;
- if (src->output_count <= srcpad || dst->input_count <= dstpad ||
- src->outputs[srcpad] || dst->inputs[dstpad])
- return -1;
+ if (src->nb_outputs <= srcpad || dst->nb_inputs <= dstpad ||
+ src->outputs[srcpad] || dst->inputs[dstpad])
+ return AVERROR(EINVAL);
if (src->output_pads[srcpad].type != dst->input_pads[dstpad].type) {
av_log(src, AV_LOG_ERROR,
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;
link->srcpad = &src->output_pads[srcpad];
link->dstpad = &dst->input_pads[dstpad];
link->type = src->output_pads[srcpad].type;
- assert(PIX_FMT_NONE == -1 && AV_SAMPLE_FMT_NONE == -1);
+ assert(AV_PIX_FMT_NONE == -1 && AV_SAMPLE_FMT_NONE == -1);
link->format = -1;
return 0;
int ret;
unsigned dstpad_idx = link->dstpad - link->dst->input_pads;
- av_log(link->dst, AV_LOG_INFO, "auto-inserting filter '%s' "
+ av_log(link->dst, AV_LOG_VERBOSE, "auto-inserting filter '%s' "
"between the filter '%s' and the filter '%s'\n",
filt->name, link->src->name, link->dst->name);
}
/* 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);
unsigned i;
int ret;
- for (i = 0; i < filter->input_count; i ++) {
+ for (i = 0; i < filter->nb_inputs; i ++) {
AVFilterLink *link = filter->inputs[i];
if (!link) continue;
+ if (!link->src || !link->dst) {
+ av_log(filter, AV_LOG_ERROR,
+ "Not all input and output are properly linked (%d).\n", i);
+ return AVERROR(EINVAL);
+ }
switch (link->init_state) {
case AVLINK_INIT:
return ret;
if (!(config_link = link->srcpad->config_props)) {
- if (link->src->input_count != 1) {
+ if (link->src->nb_inputs != 1) {
av_log(link->src, AV_LOG_ERROR, "Source filters and filters "
"with more than one input "
"must set config_props() "
}
if (link->time_base.num == 0 && link->time_base.den == 0)
- link->time_base = link->src && link->src->input_count ?
+ link->time_base = link->src->nb_inputs ?
link->src->inputs[0]->time_base : AV_TIME_BASE_Q;
if (link->type == AVMEDIA_TYPE_VIDEO) {
if (!link->sample_aspect_ratio.num && !link->sample_aspect_ratio.den)
- link->sample_aspect_ratio = link->src->input_count ?
+ link->sample_aspect_ratio = link->src->nb_inputs ?
link->src->inputs[0]->sample_aspect_ratio : (AVRational){1,1};
- if (link->src->input_count) {
+ if (link->src->nb_inputs) {
+ if (!link->frame_rate.num && !link->frame_rate.den)
+ link->frame_rate = link->src->inputs[0]->frame_rate;
if (!link->w)
link->w = link->src->inputs[0]->w;
if (!link->h)
}
}
+ if (link->src->nb_inputs && link->src->inputs[0]->hw_frames_ctx &&
+ !(link->src->filter->flags_internal & FF_FILTER_FLAG_HWFRAME_AWARE)) {
+ av_assert0(!link->hw_frames_ctx &&
+ "should not be set by non-hwframe-aware filter");
+ link->hw_frames_ctx = av_buffer_ref(link->src->inputs[0]->hw_frames_ctx);
+ if (!link->hw_frames_ctx)
+ return AVERROR(ENOMEM);
+ }
+
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;
void ff_dlog_link(void *ctx, AVFilterLink *link, int end)
{
if (link->type == AVMEDIA_TYPE_VIDEO) {
- av_dlog(ctx,
+ av_log(ctx, AV_LOG_TRACE,
"link[%p s:%dx%d fmt:%-16s %-16s->%-16s]%s",
link, link->w, link->h,
- av_pix_fmt_descriptors[link->format].name,
+ av_get_pix_fmt_name(link->format),
link->src ? link->src->filter->name : "",
link->dst ? link->dst->filter->name : "",
end ? "\n" : "");
char buf[128];
av_get_channel_layout_string(buf, sizeof(buf), -1, link->channel_layout);
- av_dlog(ctx,
- "link[%p r:%"PRId64" cl:%s fmt:%-16s %-16s->%-16s]%s",
+ av_log(ctx, AV_LOG_TRACE,
+ "link[%p r:%d cl:%s fmt:%-16s %-16s->%-16s]%s",
link, link->sample_rate, buf,
av_get_sample_fmt_name(link->format),
link->src ? link->src->filter->name : "",
return link->srcpad->request_frame(link);
else if (link->src->inputs[0])
return ff_request_frame(link->src->inputs[0]);
- else return -1;
+ else
+ return AVERROR(EINVAL);
}
int ff_poll_frame(AVFilterLink *link)
if (link->srcpad->poll_frame)
return link->srcpad->poll_frame(link);
- for (i = 0; i < link->src->input_count; i++) {
+ for (i = 0; i < link->src->nb_inputs; i++) {
int val;
if (!link->src->inputs[i])
- return -1;
+ return AVERROR(EINVAL);
val = ff_poll_frame(link->src->inputs[i]);
min = FFMIN(min, val);
}
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;
- for(count = 0; pads->name; count ++) pads ++;
+ if (!pads)
+ return 0;
+
+ 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 = {
- "AVFilter",
- filter_name,
- NULL,
- LIBAVUTIL_VERSION_INT,
+ .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;
}
- ret->input_count = pad_count(filter->inputs);
- if (ret->input_count) {
- ret->input_pads = av_malloc(sizeof(AVFilterPad) * ret->input_count);
+ av_opt_set_defaults(ret);
+ if (filter->priv_class) {
+ *(const AVClass**)ret->priv = filter->priv_class;
+ av_opt_set_defaults(ret->priv);
+ }
+
+ 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;
- memcpy(ret->input_pads, filter->inputs, sizeof(AVFilterPad) * ret->input_count);
- ret->inputs = av_mallocz(sizeof(AVFilterLink*) * ret->input_count);
+ memcpy(ret->input_pads, filter->inputs, sizeof(AVFilterPad) * ret->nb_inputs);
+ ret->inputs = av_mallocz(sizeof(AVFilterLink*) * ret->nb_inputs);
if (!ret->inputs)
goto err;
}
- ret->output_count = pad_count(filter->outputs);
- if (ret->output_count) {
- ret->output_pads = av_malloc(sizeof(AVFilterPad) * ret->output_count);
+ 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;
- memcpy(ret->output_pads, filter->outputs, sizeof(AVFilterPad) * ret->output_count);
- ret->outputs = av_mallocz(sizeof(AVFilterLink*) * ret->output_count);
+ memcpy(ret->output_pads, filter->outputs, sizeof(AVFilterPad) * ret->nb_outputs);
+ ret->outputs = av_mallocz(sizeof(AVFilterLink*) * ret->nb_outputs);
if (!ret->outputs)
goto err;
}
- *filter_ctx = ret;
- return 0;
+ return ret;
err:
av_freep(&ret->inputs);
av_freep(&ret->input_pads);
- ret->input_count = 0;
+ ret->nb_inputs = 0;
av_freep(&ret->outputs);
av_freep(&ret->output_pads);
- ret->output_count = 0;
+ 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;
+
+ av_buffer_unref(&link->hw_frames_ctx);
+
+ 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->input_count; 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);
+ for (i = 0; i < filter->nb_inputs; i++) {
+ free_link(filter->inputs[i]);
}
- for (i = 0; i < filter->output_count; 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);
+ for (i = 0; i < filter->nb_outputs; i++) {
+ free_link(filter->outputs[i]);
}
+ if (filter->filter->priv_class)
+ av_opt_free(filter->priv);
+
+ av_buffer_unref(&filter->hw_device_ctx);
+
av_freep(&filter->name);
av_freep(&filter->input_pads);
av_freep(&filter->output_pads);
av_freep(&filter->inputs);
av_freep(&filter->outputs);
av_freep(&filter->priv);
+ av_freep(&filter->internal);
av_free(filter);
}
-int avfilter_init_filter(AVFilterContext *filter, const char *args, void *opaque)
+/* process a list of value1:value2:..., each value corresponding
+ * to subsequent AVOption, in the order they are declared */
+static int process_unnamed_options(AVFilterContext *ctx, AVDictionary **options,
+ const char *args)
{
- int ret=0;
+ const AVOption *o = NULL;
+ const char *p = args;
+ char *val;
+
+ while (*p) {
+ o = av_opt_next(ctx->priv, o);
+ if (!o) {
+ av_log(ctx, AV_LOG_ERROR, "More options provided than "
+ "this filter supports.\n");
+ return AVERROR(EINVAL);
+ }
+ if (o->type == AV_OPT_TYPE_CONST)
+ continue;
- if (filter->filter->init)
- ret = filter->filter->init(filter, args, opaque);
- return ret;
+ val = av_get_token(&p, ":");
+ if (!val)
+ return AVERROR(ENOMEM);
+
+ av_dict_set(options, o->name, val, 0);
+
+ av_freep(&val);
+ if (*p)
+ p++;
+ }
+
+ return 0;
}
-const char *avfilter_pad_get_name(AVFilterPad *pads, int pad_idx)
+#if FF_API_AVFILTER_INIT_FILTER
+int avfilter_init_filter(AVFilterContext *filter, const char *args, void *opaque)
{
- return pads[pad_idx].name;
+ return avfilter_init_str(filter, args);
}
+#endif
-enum AVMediaType avfilter_pad_get_type(AVFilterPad *pads, int pad_idx)
+int avfilter_init_dict(AVFilterContext *ctx, AVDictionary **options)
{
- return pads[pad_idx].type;
+ 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;
}
-#if FF_API_DEFAULT_CONFIG_OUTPUT_LINK
-int avfilter_default_config_output_link(AVFilterLink *link)
+int avfilter_init_str(AVFilterContext *filter, const char *args)
{
- return 0;
+ AVDictionary *options = NULL;
+ AVDictionaryEntry *e;
+ 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 FF_API_OLD_FILTER_OPTS
+ if (!strcmp(filter->filter->name, "scale") &&
+ strchr(args, ':') && strchr(args, ':') < strchr(args, '=')) {
+ /* old w:h:flags=<flags> syntax */
+ char *copy = av_strdup(args);
+ char *p;
+
+ av_log(filter, AV_LOG_WARNING, "The <w>:<h>:flags=<flags> option "
+ "syntax is deprecated. Use either <w>:<h>:<flags> or "
+ "w=<w>:h=<h>:flags=<flags>.\n");
+
+ if (!copy) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+
+ p = strrchr(copy, ':');
+ if (p) {
+ *p++ = 0;
+ ret = av_dict_parse_string(&options, p, "=", ":", 0);
+ }
+ if (ret >= 0)
+ ret = process_unnamed_options(filter, &options, copy);
+ av_freep(©);
+
+ if (ret < 0)
+ goto fail;
+ } else
+#endif
+
+ if (strchr(args, '=')) {
+ /* assume a list of key1=value1:key2=value2:... */
+ ret = av_dict_parse_string(&options, args, "=", ":", 0);
+ if (ret < 0)
+ goto fail;
+#if FF_API_OLD_FILTER_OPTS
+ } 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, "ocv")) {
+ /* a hack for compatibility with the old syntax
+ * replace colons with |s */
+ char *copy = av_strdup(args);
+ char *p = copy;
+ int nb_leading = 0; // number of leading colons to skip
+
+ if (!copy) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+
+ 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;
+
+ while (nb_leading--) {
+ p = strchr(p, ':');
+ if (!p) {
+ p = copy + strlen(copy);
+ break;
+ }
+ p++;
+ }
+
+ if (strchr(p, ':')) {
+ av_log(filter, AV_LOG_WARNING, "This syntax is deprecated. Use "
+ "'|' to separate the list items.\n");
+ }
+
+ while ((p = strchr(p, ':')))
+ *p++ = '|';
+
+ ret = process_unnamed_options(filter, &options, copy);
+ av_freep(©);
+
+ if (ret < 0)
+ goto fail;
+#endif
+ } else {
+ ret = process_unnamed_options(filter, &options, args);
+ if (ret < 0)
+ goto fail;
+ }
+ }
+
+ ret = avfilter_init_dict(filter, &options);
+ if (ret < 0)
+ goto fail;
+
+ if ((e = av_dict_get(options, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
+ av_log(filter, AV_LOG_ERROR, "No such option: %s.\n", e->key);
+ ret = AVERROR_OPTION_NOT_FOUND;
+ goto fail;
+ }
+
+fail:
+ av_dict_free(&options);
+
+ return ret;
}
-void avfilter_insert_pad(unsigned idx, unsigned *count, size_t padidx_off,
- AVFilterPad **pads, AVFilterLink ***links,
- AVFilterPad *newpad)
+
+const char *avfilter_pad_get_name(const AVFilterPad *pads, int pad_idx)
{
- ff_insert_pad(idx, count, padidx_off, pads, links, newpad);
+ return pads[pad_idx].name;
}
-void avfilter_insert_inpad(AVFilterContext *f, unsigned index,
- AVFilterPad *p)
+
+enum AVMediaType avfilter_pad_get_type(const AVFilterPad *pads, int pad_idx)
{
- ff_insert_pad(index, &f->input_count, offsetof(AVFilterLink, dstpad),
- &f->input_pads, &f->inputs, p);
+ return pads[pad_idx].type;
}
-void avfilter_insert_outpad(AVFilterContext *f, unsigned index,
- AVFilterPad *p)
+
+static int default_filter_frame(AVFilterLink *link, AVFrame *frame)
{
- ff_insert_pad(index, &f->output_count, offsetof(AVFilterLink, srcpad),
- &f->output_pads, &f->outputs, p);
+ return ff_filter_frame(link->dst->outputs[0], frame);
}
-int avfilter_poll_frame(AVFilterLink *link)
+
+int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
{
- return ff_poll_frame(link);
+ int (*filter_frame)(AVFilterLink *, AVFrame *);
+ AVFilterPad *dst = link->dstpad;
+ AVFrame *out = NULL;
+ int ret;
+
+ FF_DPRINTF_START(NULL, filter_frame);
+ ff_dlog_link(NULL, link, 1);
+
+ if (!(filter_frame = dst->filter_frame))
+ filter_frame = default_filter_frame;
+
+ /* copy the frame if needed */
+ if (dst->needs_writable && !av_frame_is_writable(frame)) {
+ av_log(link->dst, AV_LOG_DEBUG, "Copying data in avfilter.\n");
+
+ switch (link->type) {
+ case AVMEDIA_TYPE_VIDEO:
+ out = ff_get_video_buffer(link, link->w, link->h);
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ out = ff_get_audio_buffer(link, frame->nb_samples);
+ break;
+ default:
+ ret = AVERROR(EINVAL);
+ goto fail;
+ }
+ if (!out) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+
+ ret = av_frame_copy_props(out, frame);
+ if (ret < 0)
+ goto fail;
+
+ switch (link->type) {
+ case AVMEDIA_TYPE_VIDEO:
+ av_image_copy(out->data, out->linesize, frame->data, frame->linesize,
+ frame->format, frame->width, frame->height);
+ break;
+ case AVMEDIA_TYPE_AUDIO:
+ av_samples_copy(out->extended_data, frame->extended_data,
+ 0, 0, frame->nb_samples,
+ av_get_channel_layout_nb_channels(frame->channel_layout),
+ frame->format);
+ break;
+ default:
+ ret = AVERROR(EINVAL);
+ goto fail;
+ }
+
+ av_frame_free(&frame);
+ } else
+ out = frame;
+
+ return filter_frame(link, out);
+
+fail:
+ av_frame_free(&out);
+ av_frame_free(&frame);
+ return ret;
}
-int avfilter_request_frame(AVFilterLink *link)
+
+const AVClass *avfilter_get_class(void)
{
- return ff_request_frame(link);
+ return &avfilter_class;
}
-#endif
projects / ffmpeg / blobdiff