rtpdec_h264: Prepare h264_handle_packet_stap_a for sharing with hevc

[ffmpeg] / libavfilter / split.c

diff --git a/libavfilter/split.c b/libavfilter/split.c
index 01bb4489f04bde98568f27efa882252c31f4342a..41395e7f480eceacad606d84037ab2b76d2166f9 100644 (file)
--- a/libavfilter/split.c
+++ b/libavfilter/split.c
@@ -25,27 +25,27 @@
 
 #include <stdio.h>
 
+#include "libavutil/attributes.h"
 #include "libavutil/internal.h"
 #include "libavutil/mem.h"
+#include "libavutil/opt.h"
+
 #include "avfilter.h"
 #include "audio.h"
 #include "internal.h"
 #include "video.h"
 
-static int split_init(AVFilterContext *ctx, const char *args)
+typedef struct SplitContext {
+    const AVClass *class;
+    int nb_outputs;
+} SplitContext;
+
+static av_cold int split_init(AVFilterContext *ctx)
 {
-    int i, nb_outputs = 2;
-
-    if (args) {
-        nb_outputs = strtol(args, NULL, 0);
-        if (nb_outputs <= 0) {
-            av_log(ctx, AV_LOG_ERROR, "Invalid number of outputs specified: %d.\n",
-                   nb_outputs);
-            return AVERROR(EINVAL);
-        }
-    }
+    SplitContext *s = ctx->priv;
+    int i;
 
-    for (i = 0; i < nb_outputs; i++) {
+    for (i = 0; i < s->nb_outputs; i++) {
         char name[32];
         AVFilterPad pad = { 0 };
 
@@ -59,7 +59,7 @@ static int split_init(AVFilterContext *ctx, const char *args)
     return 0;
 }
 
-static void split_uninit(AVFilterContext *ctx)
+static av_cold void split_uninit(AVFilterContext *ctx)
 {
     int i;
 
@@ -67,110 +67,95 @@ static void split_uninit(AVFilterContext *ctx)
         av_freep(&ctx->output_pads[i].name);
 }
 
-static int start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
+static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
 {
     AVFilterContext *ctx = inlink->dst;
     int i, ret = 0;
 
     for (i = 0; i < ctx->nb_outputs; i++) {
-        AVFilterBufferRef *buf_out = avfilter_ref_buffer(picref, ~AV_PERM_WRITE);
-        if (!buf_out)
-            return AVERROR(ENOMEM);
-
-        ret = ff_start_frame(ctx->outputs[i], buf_out);
-        if (ret < 0)
+        AVFrame *buf_out = av_frame_clone(frame);
+        if (!buf_out) {
+            ret = AVERROR(ENOMEM);
             break;
-    }
-    return ret;
-}
-
-static int draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
-{
-    AVFilterContext *ctx = inlink->dst;
-    int i, ret = 0;
+        }
 
-    for (i = 0; i < ctx->nb_outputs; i++) {
-        ret = ff_draw_slice(ctx->outputs[i], y, h, slice_dir);
+        ret = ff_filter_frame(ctx->outputs[i], buf_out);
         if (ret < 0)
             break;
     }
+    av_frame_free(&frame);
     return ret;
 }
 
-static int end_frame(AVFilterLink *inlink)
-{
-    AVFilterContext *ctx = inlink->dst;
-    int i, ret = 0;
+#define OFFSET(x) offsetof(SplitContext, x)
+#define FLAGS AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_VIDEO_PARAM
+static const AVOption options[] = {
+    { "outputs", "Number of outputs", OFFSET(nb_outputs), AV_OPT_TYPE_INT, { .i64 = 2 }, 1, INT_MAX, FLAGS },
+    { NULL },
+};
 
-    for (i = 0; i < ctx->nb_outputs; i++) {
-        ret = ff_end_frame(ctx->outputs[i]);
-        if (ret < 0)
-            break;
-    }
-    return ret;
-}
+static const AVClass split_class = {
+    .class_name = "split",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
+
+static const AVClass asplit_class = {
+    .class_name = "asplit",
+    .item_name  = av_default_item_name,
+    .option     = options,
+    .version    = LIBAVUTIL_VERSION_INT,
+};
 
 static const AVFilterPad avfilter_vf_split_inputs[] = {
     {
         .name             = "default",
         .type             = AVMEDIA_TYPE_VIDEO,
         .get_video_buffer = ff_null_get_video_buffer,
-        .start_frame      = start_frame,
-        .draw_slice       = draw_slice,
-        .end_frame        = end_frame,
+        .filter_frame     = filter_frame,
     },
     { NULL }
 };
 
-AVFilter avfilter_vf_split = {
+AVFilter ff_vf_split = {
     .name      = "split",
-    .description = NULL_IF_CONFIG_SMALL("Pass on the input to two outputs."),
+    .description = NULL_IF_CONFIG_SMALL("Pass on the input to N video outputs."),
+
+    .priv_size  = sizeof(SplitContext),
+    .priv_class = &split_class,
 
     .init   = split_init,
     .uninit = split_uninit,
 
     .inputs    = avfilter_vf_split_inputs,
     .outputs   = NULL,
-};
 
-static int filter_samples(AVFilterLink *inlink, AVFilterBufferRef *samplesref)
-{
-    AVFilterContext *ctx = inlink->dst;
-    int i, ret = 0;
-
-    for (i = 0; i < ctx->nb_outputs; i++) {
-        AVFilterBufferRef *buf_out = avfilter_ref_buffer(samplesref,
-                                                         ~AV_PERM_WRITE);
-        if (!buf_out) {
-            ret = AVERROR(ENOMEM);
-            break;
-        }
-
-        ret = ff_filter_samples(inlink->dst->outputs[i], buf_out);
-        if (ret < 0)
-            break;
-    }
-    avfilter_unref_buffer(samplesref);
-    return ret;
-}
+    .flags     = AVFILTER_FLAG_DYNAMIC_OUTPUTS,
+};
 
 static const AVFilterPad avfilter_af_asplit_inputs[] = {
     {
         .name             = "default",
         .type             = AVMEDIA_TYPE_AUDIO,
         .get_audio_buffer = ff_null_get_audio_buffer,
-        .filter_samples   = filter_samples
+        .filter_frame     = filter_frame,
     },
     { NULL }
 };
 
-AVFilter avfilter_af_asplit = {
+AVFilter ff_af_asplit = {
     .name        = "asplit",
     .description = NULL_IF_CONFIG_SMALL("Pass on the audio input to N audio outputs."),
 
+    .priv_size  = sizeof(SplitContext),
+    .priv_class = &asplit_class,
+
     .init   = split_init,
     .uninit = split_uninit,
 
     .inputs  = avfilter_af_asplit_inputs,
     .outputs = NULL,
+
+    .flags   = AVFILTER_FLAG_DYNAMIC_OUTPUTS,
 };