@@ -33,13 +33,13 @@ OBJS = allfilters.o                                                     \

        avfilter.o                                                       \

        avfiltergraph.o                                                  \

        buffer.o                                                         \

+       buffersink.o                                                     \

        buffersrc.o                                                      \

        drawutils.o                                                      \

        fifo.o                                                           \

        formats.o                                                        \

        graphdump.o                                                      \

        graphparser.o                                                    \

-       sink_buffer.o                                                    \

        transform.o                                                      \

        video.o                                                          \

new file mode 100644

@@ -0,0 +1,486 @@

+/*

+ * Copyright (c) 2011 Stefano Sabatini

+ *

+ * This file is part of FFmpeg.

+ *

+ * FFmpeg is free software; you can redistribute it and/or

+ * modify it under the terms of the GNU Lesser General Public

+ * License as published by the Free Software Foundation; either

+ * version 2.1 of the License, or (at your option) any later version.

+ *

+ * FFmpeg is distributed in the hope that it will be useful,

+ * but WITHOUT ANY WARRANTY; without even the implied warranty of

+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

+ * Lesser General Public License for more details.

+ *

+ * You should have received a copy of the GNU Lesser General Public

+ * License along with FFmpeg; if not, write to the Free Software

+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

+ */

+

+/**

+ * @file

+ * buffer sink

+ */

+

+#include "libavutil/fifo.h"

+#include "libavutil/avassert.h"

+#include "libavutil/channel_layout.h"

+#include "libavutil/common.h"

+#include "libavutil/mathematics.h"

+

+#include "audio.h"

+#include "avfilter.h"

+#include "buffersink.h"

+#include "internal.h"

+

+typedef struct {

+    AVFifoBuffer *fifo;                      ///< FIFO buffer of video frame references

+    unsigned warning_limit;

+

+    /* only used for video */

+    enum AVPixelFormat *pixel_fmts;           ///< list of accepted pixel formats, must be terminated with -1

+

+    /* only used for audio */

+    enum AVSampleFormat *sample_fmts;       ///< list of accepted sample formats, terminated by AV_SAMPLE_FMT_NONE

+    int64_t *channel_layouts;               ///< list of accepted channel layouts, terminated by -1

+    int all_channel_counts;

+    int *sample_rates;                      ///< list of accepted sample rates, terminated by -1

+} BufferSinkContext;

+

+static av_cold void uninit(AVFilterContext *ctx)

+{

+    BufferSinkContext *sink = ctx->priv;

+    AVFrame *frame;

+

+    if (sink->fifo) {

+        while (av_fifo_size(sink->fifo) >= sizeof(AVFilterBufferRef *)) {

+            av_fifo_generic_read(sink->fifo, &frame, sizeof(frame), NULL);

+            av_frame_unref(frame);

+        }

+        av_fifo_free(sink->fifo);

+        sink->fifo = NULL;

+    }

+    av_freep(&sink->pixel_fmts);

+    av_freep(&sink->sample_fmts);

+    av_freep(&sink->sample_rates);

+    av_freep(&sink->channel_layouts);

+}

+

+static int add_buffer_ref(AVFilterContext *ctx, AVFrame *ref)

+{

+    BufferSinkContext *buf = ctx->priv;

+

+    if (av_fifo_space(buf->fifo) < sizeof(AVFilterBufferRef *)) {

+        /* realloc fifo size */

+        if (av_fifo_realloc2(buf->fifo, av_fifo_size(buf->fifo) * 2) < 0) {

+            av_log(ctx, AV_LOG_ERROR,

+                   "Cannot buffer more frames. Consume some available frames "

+                   "before adding new ones.\n");

+            return AVERROR(ENOMEM);

+        }

+    }

+

+    /* cache frame */

+    av_fifo_generic_write(buf->fifo, &ref, sizeof(AVFilterBufferRef *), NULL);

+    return 0;

+}

+

+static int filter_frame(AVFilterLink *link, AVFrame *frame)

+{

+    AVFilterContext *ctx = link->dst;

+    BufferSinkContext *buf = link->dst->priv;

+    int ret;

+

+    if ((ret = add_buffer_ref(ctx, frame)) < 0)

+        return ret;

+    if (buf->warning_limit &&

+        av_fifo_size(buf->fifo) / sizeof(AVFilterBufferRef *) >= buf->warning_limit) {

+        av_log(ctx, AV_LOG_WARNING,

+               "%d buffers queued in %s, something may be wrong.\n",

+               buf->warning_limit,

+               (char *)av_x_if_null(ctx->name, ctx->filter->name));

+        buf->warning_limit *= 10;

+    }

+    return 0;

+}

+

+int av_buffersink_get_frame(AVFilterContext *ctx, AVFrame *frame)

+{

+    return av_buffersink_get_frame_flags(ctx, frame, 0);

+}

+

+int av_buffersink_get_frame_flags(AVFilterContext *ctx, AVFrame *frame, int flags)

+{

+    BufferSinkContext *buf = ctx->priv;

+    AVFilterLink *inlink = ctx->inputs[0];

+    int ret;

+    AVFrame *cur_frame;

+

+    /* no picref available, fetch it from the filterchain */

+    if (!av_fifo_size(buf->fifo)) {

+        if (flags & AV_BUFFERSINK_FLAG_NO_REQUEST)

+            return AVERROR(EAGAIN);

+        if ((ret = ff_request_frame(inlink)) < 0)

+            return ret;

+    }

+

+    if (!av_fifo_size(buf->fifo))

+        return AVERROR(EINVAL);

+

+    if (flags & AV_BUFFERSINK_FLAG_PEEK) {

+        cur_frame = *((AVFrame **)av_fifo_peek2(buf->fifo, 0));

+        av_frame_ref(frame, cur_frame); /* TODO check failure */

+    } else {

+        av_fifo_generic_read(buf->fifo, &cur_frame, sizeof(cur_frame), NULL);

+        av_frame_move_ref(frame, cur_frame);

+        av_frame_free(&cur_frame);

+    }

+

+    return 0;

+}

+

+int av_buffersink_get_samples(AVFilterContext *ctx, AVFrame *frame, int nb_samples)

+{

+    av_assert0(!"TODO");

+}

+

+AVBufferSinkParams *av_buffersink_params_alloc(void)

+{

+    static const int pixel_fmts[] = { AV_PIX_FMT_NONE };

+    AVBufferSinkParams *params = av_malloc(sizeof(AVBufferSinkParams));

+    if (!params)

+        return NULL;

+

+    params->pixel_fmts = pixel_fmts;

+    return params;

+}

+

+AVABufferSinkParams *av_abuffersink_params_alloc(void)

+{

+    AVABufferSinkParams *params = av_mallocz(sizeof(AVABufferSinkParams));

+

+    if (!params)

+        return NULL;

+    return params;

+}

+

+#define FIFO_INIT_SIZE 8

+

+static av_cold int common_init(AVFilterContext *ctx)

+{

+    BufferSinkContext *buf = ctx->priv;

+

+    buf->fifo = av_fifo_alloc(FIFO_INIT_SIZE*sizeof(AVFilterBufferRef *));

+    if (!buf->fifo) {

+        av_log(ctx, AV_LOG_ERROR, "Failed to allocate fifo\n");

+        return AVERROR(ENOMEM);

+    }

+    buf->warning_limit = 100;

+    return 0;

+}

+

+void av_buffersink_set_frame_size(AVFilterContext *ctx, unsigned frame_size)

+{

+    AVFilterLink *inlink = ctx->inputs[0];

+

+    inlink->min_samples = inlink->max_samples =

+    inlink->partial_buf_size = frame_size;

+}

+

+#if FF_API_AVFILTERBUFFER

+static void compat_free_buffer(AVFilterBuffer *buf)

+{

+    AVFrame *frame = buf->priv;

+    av_frame_free(&frame);

+    av_free(buf);

+}

+

+static int compat_read(AVFilterContext *ctx, AVFilterBufferRef **pbuf, int nb_samples, int flags)

+{

+    AVFilterBufferRef *buf;

+    AVFrame *frame;

+    int ret;

+

+    if (!pbuf)

+        return ff_poll_frame(ctx->inputs[0]);

+

+    frame = av_frame_alloc();

+    if (!frame)

+        return AVERROR(ENOMEM);

+

+    if (!nb_samples)

+        ret = av_buffersink_get_frame_flags(ctx, frame, flags);

+    else

+        ret = av_buffersink_get_samples(ctx, frame, nb_samples);

+

+    if (ret < 0)

+        goto fail;

+

+    if (ctx->inputs[0]->type == AVMEDIA_TYPE_VIDEO) {

+        buf = avfilter_get_video_buffer_ref_from_arrays(frame->data, frame->linesize,

+                                                        AV_PERM_READ,

+                                                        frame->width, frame->height,

+                                                        frame->format);

+    } else {

+        buf = avfilter_get_audio_buffer_ref_from_arrays(frame->extended_data,

+                                                        frame->linesize[0], AV_PERM_READ,

+                                                        frame->nb_samples,

+                                                        frame->format,

+                                                        frame->channel_layout);

+    }

+    if (!buf) {

+        ret = AVERROR(ENOMEM);

+        goto fail;

+    }

+

+    avfilter_copy_frame_props(buf, frame);

+

+    buf->buf->priv = frame;

+    buf->buf->free = compat_free_buffer;

+

+    *pbuf = buf;

+

+    return 0;

+fail:

+    av_frame_free(&frame);

+    return ret;

+}

+

+int av_buffersink_read(AVFilterContext *ctx, AVFilterBufferRef **buf)

+{

+    return compat_read(ctx, buf, 0, 0);

+}

+

+int av_buffersink_read_samples(AVFilterContext *ctx, AVFilterBufferRef **buf,

+                               int nb_samples)

+{

+    return compat_read(ctx, buf, nb_samples, 0);

+}

+

+int av_buffersink_get_buffer_ref(AVFilterContext *ctx,

+                                  AVFilterBufferRef **bufref, int flags)

+{

+    *bufref = NULL;

+

+    av_assert0(    !strcmp(ctx->filter->name, "buffersink")

+                || !strcmp(ctx->filter->name, "abuffersink")

+                || !strcmp(ctx->filter->name, "ffbuffersink")

+                || !strcmp(ctx->filter->name, "ffabuffersink"));

+

+    return compat_read(ctx, bufref, 0, flags);

+}

+#endif

+

+AVRational av_buffersink_get_frame_rate(AVFilterContext *ctx)

+{

+    av_assert0(   !strcmp(ctx->filter->name, "buffersink")

+               || !strcmp(ctx->filter->name, "ffbuffersink"));

+

+    return ctx->inputs[0]->frame_rate;

+}

+

+int av_buffersink_poll_frame(AVFilterContext *ctx)

+{

+    BufferSinkContext *buf = ctx->priv;

+    AVFilterLink *inlink = ctx->inputs[0];

+

+    av_assert0(   !strcmp(ctx->filter->name, "buffersink")

+               || !strcmp(ctx->filter->name, "abuffersink")

+               || !strcmp(ctx->filter->name, "ffbuffersink")

+               || !strcmp(ctx->filter->name, "ffabuffersink"));

+

+    return av_fifo_size(buf->fifo)/sizeof(AVFilterBufferRef *) + ff_poll_frame(inlink);

+}

+

+static av_cold int vsink_init(AVFilterContext *ctx, const char *args, void *opaque)

+{

+    BufferSinkContext *buf = ctx->priv;

+    AVBufferSinkParams *params = opaque;

+

+    if (params && params->pixel_fmts) {

+        const int *pixel_fmts = params->pixel_fmts;

+

+        buf->pixel_fmts = ff_copy_int_list(pixel_fmts);

+        if (!buf->pixel_fmts)

+            return AVERROR(ENOMEM);

+    }

+

+    return common_init(ctx);

+}

+

+static int vsink_query_formats(AVFilterContext *ctx)

+{

+    BufferSinkContext *buf = ctx->priv;

+

+    if (buf->pixel_fmts)

+        ff_set_common_formats(ctx, ff_make_format_list(buf->pixel_fmts));

+    else

+        ff_default_query_formats(ctx);

+

+    return 0;

+}

+

+static const AVFilterPad ffbuffersink_inputs[] = {

+    {

+        .name      = "default",

+        .type      = AVMEDIA_TYPE_VIDEO,

+        .filter_frame = filter_frame,

+    },

+    { NULL },

+};

+

+AVFilter avfilter_vsink_ffbuffersink = {

+    .name      = "ffbuffersink",

+    .description = NULL_IF_CONFIG_SMALL("Buffer video frames, and make them available to the end of the filter graph."),

+    .priv_size = sizeof(BufferSinkContext),

+    .init_opaque = vsink_init,

+    .uninit    = uninit,

+

+    .query_formats = vsink_query_formats,

+    .inputs        = ffbuffersink_inputs,

+    .outputs       = NULL,

+};

+

+static const AVFilterPad buffersink_inputs[] = {

+    {

+        .name      = "default",

+        .type      = AVMEDIA_TYPE_VIDEO,

+        .filter_frame = filter_frame,

+    },

+    { NULL },

+};

+

+AVFilter avfilter_vsink_buffersink = {

+    .name      = "buffersink",

+    .description = NULL_IF_CONFIG_SMALL("Buffer video frames, and make them available to the end of the filter graph."),

+    .priv_size = sizeof(BufferSinkContext),

+    .init_opaque = vsink_init,

+    .uninit    = uninit,

+

+    .query_formats = vsink_query_formats,

+    .inputs        = buffersink_inputs,

+    .outputs       = NULL,

+};

+

+static int64_t *concat_channels_lists(const int64_t *layouts, const int *counts)

+{

+    int nb_layouts = 0, nb_counts = 0, i;

+    int64_t *list;

+

+    if (layouts)

+        for (; layouts[nb_layouts] != -1; nb_layouts++);

+    if (counts)

+        for (; counts[nb_counts] != -1; nb_counts++);

+    if (nb_counts > INT_MAX - 1 - nb_layouts)

+        return NULL;

+    if (!(list = av_calloc(nb_layouts + nb_counts + 1, sizeof(*list))))

+        return NULL;

+    for (i = 0; i < nb_layouts; i++)

+        list[i] = layouts[i];

+    for (i = 0; i < nb_counts; i++)

+        list[nb_layouts + i] = FF_COUNT2LAYOUT(counts[i]);

+    list[nb_layouts + nb_counts] = -1;

+    return list;

+}

+

+static av_cold int asink_init(AVFilterContext *ctx, const char *args, void *opaque)

+{

+    BufferSinkContext *buf = ctx->priv;

+    AVABufferSinkParams *params = opaque;

+

+    if (params && params->sample_fmts) {

+        buf->sample_fmts = ff_copy_int_list(params->sample_fmts);

+        if (!buf->sample_fmts)

+            return AVERROR(ENOMEM);

+    }

+    if (params && params->sample_rates) {

+        buf->sample_rates = ff_copy_int_list(params->sample_rates);

+        if (!buf->sample_rates)

+            return AVERROR(ENOMEM);

+    }

+    if (params && (params->channel_layouts || params->channel_counts)) {

+        if (params->all_channel_counts) {

+            av_log(ctx, AV_LOG_ERROR,

+                   "Conflicting all_channel_counts and list in parameters\n");

+            return AVERROR(EINVAL);

+        }

+        buf->channel_layouts = concat_channels_lists(params->channel_layouts,

+                                                     params->channel_counts);

+        if (!buf->channel_layouts)

+            return AVERROR(ENOMEM);

+    }

+    if (params)

+        buf->all_channel_counts = params->all_channel_counts;

+    return common_init(ctx);

+}

+

+static int asink_query_formats(AVFilterContext *ctx)

+{

+    BufferSinkContext *buf = ctx->priv;

+    AVFilterFormats *formats = NULL;

+    AVFilterChannelLayouts *layouts = NULL;

+

+    if (buf->sample_fmts) {

+        if (!(formats = ff_make_format_list(buf->sample_fmts)))

+            return AVERROR(ENOMEM);

+        ff_set_common_formats(ctx, formats);

+    }

+

+    if (buf->channel_layouts || buf->all_channel_counts) {

+            layouts = buf->all_channel_counts ? ff_all_channel_counts() :

+                      avfilter_make_format64_list(buf->channel_layouts);

+        if (!layouts)

+            return AVERROR(ENOMEM);

+        ff_set_common_channel_layouts(ctx, layouts);

+    }

+

+    if (buf->sample_rates) {

+        formats = ff_make_format_list(buf->sample_rates);

+        if (!formats)

+            return AVERROR(ENOMEM);

+        ff_set_common_samplerates(ctx, formats);

+    }

+

+    return 0;

+}

+

+static const AVFilterPad ffabuffersink_inputs[] = {

+    {

+        .name           = "default",

+        .type           = AVMEDIA_TYPE_AUDIO,

+        .filter_frame   = filter_frame,

+    },

+    { NULL },

+};

+

+AVFilter avfilter_asink_ffabuffersink = {

+    .name      = "ffabuffersink",

+    .description = NULL_IF_CONFIG_SMALL("Buffer audio frames, and make them available to the end of the filter graph."),

+    .init_opaque = asink_init,

+    .uninit    = uninit,

+    .priv_size = sizeof(BufferSinkContext),

+    .query_formats = asink_query_formats,

+    .inputs        = ffabuffersink_inputs,

+    .outputs       = NULL,

+};

+

+static const AVFilterPad abuffersink_inputs[] = {

+    {

+        .name           = "default",

+        .type           = AVMEDIA_TYPE_AUDIO,

+        .filter_frame   = filter_frame,

+    },

+    { NULL },

+};

+

+AVFilter avfilter_asink_abuffersink = {

+    .name      = "abuffersink",

+    .description = NULL_IF_CONFIG_SMALL("Buffer audio frames, and make them available to the end of the filter graph."),

+    .init_opaque = asink_init,

+    .uninit    = uninit,

+    .priv_size = sizeof(BufferSinkContext),

+    .query_formats = asink_query_formats,

+    .inputs        = abuffersink_inputs,

+    .outputs       = NULL,

+};

deleted file mode 100644

@@ -1,486 +0,0 @@

-/*

- * Copyright (c) 2011 Stefano Sabatini

- *

- * This file is part of FFmpeg.

- *

- * FFmpeg is free software; you can redistribute it and/or

- * modify it under the terms of the GNU Lesser General Public

- * License as published by the Free Software Foundation; either

- * version 2.1 of the License, or (at your option) any later version.

- *

- * FFmpeg is distributed in the hope that it will be useful,

- * but WITHOUT ANY WARRANTY; without even the implied warranty of

- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

- * Lesser General Public License for more details.

- *

- * You should have received a copy of the GNU Lesser General Public

- * License along with FFmpeg; if not, write to the Free Software

- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

- */

-

-/**

- * @file

- * buffer sink

- */

-

-#include "libavutil/fifo.h"

-#include "libavutil/avassert.h"

-#include "libavutil/channel_layout.h"

-#include "libavutil/common.h"

-#include "libavutil/mathematics.h"

-

-#include "audio.h"

-#include "avfilter.h"

-#include "buffersink.h"

-#include "internal.h"

-

-typedef struct {

-    AVFifoBuffer *fifo;                      ///< FIFO buffer of video frame references

-    unsigned warning_limit;

-

-    /* only used for video */

-    enum AVPixelFormat *pixel_fmts;           ///< list of accepted pixel formats, must be terminated with -1

-

-    /* only used for audio */

-    enum AVSampleFormat *sample_fmts;       ///< list of accepted sample formats, terminated by AV_SAMPLE_FMT_NONE

-    int64_t *channel_layouts;               ///< list of accepted channel layouts, terminated by -1

-    int all_channel_counts;

-    int *sample_rates;                      ///< list of accepted sample rates, terminated by -1

-} BufferSinkContext;

-

-static av_cold void uninit(AVFilterContext *ctx)

-{

-    BufferSinkContext *sink = ctx->priv;

-    AVFrame *frame;

-

-    if (sink->fifo) {

-        while (av_fifo_size(sink->fifo) >= sizeof(AVFilterBufferRef *)) {

-            av_fifo_generic_read(sink->fifo, &frame, sizeof(frame), NULL);

-            av_frame_unref(frame);

-        }

-        av_fifo_free(sink->fifo);

-        sink->fifo = NULL;

-    }

-    av_freep(&sink->pixel_fmts);

-    av_freep(&sink->sample_fmts);

-    av_freep(&sink->sample_rates);

-    av_freep(&sink->channel_layouts);

-}

-

-static int add_buffer_ref(AVFilterContext *ctx, AVFrame *ref)

-{

-    BufferSinkContext *buf = ctx->priv;

-

-    if (av_fifo_space(buf->fifo) < sizeof(AVFilterBufferRef *)) {

-        /* realloc fifo size */

-        if (av_fifo_realloc2(buf->fifo, av_fifo_size(buf->fifo) * 2) < 0) {

-            av_log(ctx, AV_LOG_ERROR,

-                   "Cannot buffer more frames. Consume some available frames "

-                   "before adding new ones.\n");

-            return AVERROR(ENOMEM);

-        }

-    }

-

-    /* cache frame */

-    av_fifo_generic_write(buf->fifo, &ref, sizeof(AVFilterBufferRef *), NULL);

-    return 0;

-}

-

-static int filter_frame(AVFilterLink *link, AVFrame *frame)

-{

-    AVFilterContext *ctx = link->dst;

-    BufferSinkContext *buf = link->dst->priv;

-    int ret;

-

-    if ((ret = add_buffer_ref(ctx, frame)) < 0)

-        return ret;

-    if (buf->warning_limit &&

-        av_fifo_size(buf->fifo) / sizeof(AVFilterBufferRef *) >= buf->warning_limit) {

-        av_log(ctx, AV_LOG_WARNING,

-               "%d buffers queued in %s, something may be wrong.\n",

-               buf->warning_limit,

-               (char *)av_x_if_null(ctx->name, ctx->filter->name));

-        buf->warning_limit *= 10;

-    }

-    return 0;

-}

-

-int av_buffersink_get_frame(AVFilterContext *ctx, AVFrame *frame)

-{

-    return av_buffersink_get_frame_flags(ctx, frame, 0);

-}

-

-int av_buffersink_get_frame_flags(AVFilterContext *ctx, AVFrame *frame, int flags)

-{

-    BufferSinkContext *buf = ctx->priv;

-    AVFilterLink *inlink = ctx->inputs[0];

-    int ret;

-    AVFrame *cur_frame;

-

-    /* no picref available, fetch it from the filterchain */

-    if (!av_fifo_size(buf->fifo)) {

-        if (flags & AV_BUFFERSINK_FLAG_NO_REQUEST)

-            return AVERROR(EAGAIN);

-        if ((ret = ff_request_frame(inlink)) < 0)

-            return ret;

-    }

-

-    if (!av_fifo_size(buf->fifo))

-        return AVERROR(EINVAL);

-

-    if (flags & AV_BUFFERSINK_FLAG_PEEK) {

-        cur_frame = *((AVFrame **)av_fifo_peek2(buf->fifo, 0));

-        av_frame_ref(frame, cur_frame); /* TODO check failure */

-    } else {

-        av_fifo_generic_read(buf->fifo, &cur_frame, sizeof(cur_frame), NULL);

-        av_frame_move_ref(frame, cur_frame);

-        av_frame_free(&cur_frame);

-    }

-

-    return 0;

-}

-

-int av_buffersink_get_samples(AVFilterContext *ctx, AVFrame *frame, int nb_samples)

-{

-    av_assert0(!"TODO");

-}

-

-AVBufferSinkParams *av_buffersink_params_alloc(void)

-{

-    static const int pixel_fmts[] = { AV_PIX_FMT_NONE };

-    AVBufferSinkParams *params = av_malloc(sizeof(AVBufferSinkParams));

-    if (!params)

-        return NULL;

-

-    params->pixel_fmts = pixel_fmts;

-    return params;

-}

-

-AVABufferSinkParams *av_abuffersink_params_alloc(void)

-{

-    AVABufferSinkParams *params = av_mallocz(sizeof(AVABufferSinkParams));

-

-    if (!params)

-        return NULL;

-    return params;

-}

-

-#define FIFO_INIT_SIZE 8

-

-static av_cold int common_init(AVFilterContext *ctx)

-{

-    BufferSinkContext *buf = ctx->priv;

-

-    buf->fifo = av_fifo_alloc(FIFO_INIT_SIZE*sizeof(AVFilterBufferRef *));

-    if (!buf->fifo) {

-        av_log(ctx, AV_LOG_ERROR, "Failed to allocate fifo\n");

-        return AVERROR(ENOMEM);

-    }

-    buf->warning_limit = 100;

-    return 0;

-}

-

-void av_buffersink_set_frame_size(AVFilterContext *ctx, unsigned frame_size)

-{

-    AVFilterLink *inlink = ctx->inputs[0];

-

-    inlink->min_samples = inlink->max_samples =

-    inlink->partial_buf_size = frame_size;

-}

-

-#if FF_API_AVFILTERBUFFER

-static void compat_free_buffer(AVFilterBuffer *buf)

-{

-    AVFrame *frame = buf->priv;

-    av_frame_free(&frame);

-    av_free(buf);

-}

-

-static int compat_read(AVFilterContext *ctx, AVFilterBufferRef **pbuf, int nb_samples, int flags)

-{

-    AVFilterBufferRef *buf;

-    AVFrame *frame;

-    int ret;

-

-    if (!pbuf)

-        return ff_poll_frame(ctx->inputs[0]);

-

-    frame = av_frame_alloc();

-    if (!frame)

-        return AVERROR(ENOMEM);

-

-    if (!nb_samples)

-        ret = av_buffersink_get_frame_flags(ctx, frame, flags);

-    else

-        ret = av_buffersink_get_samples(ctx, frame, nb_samples);

-

-    if (ret < 0)

-        goto fail;

-

-    if (ctx->inputs[0]->type == AVMEDIA_TYPE_VIDEO) {

-        buf = avfilter_get_video_buffer_ref_from_arrays(frame->data, frame->linesize,

-                                                        AV_PERM_READ,

-                                                        frame->width, frame->height,

-                                                        frame->format);

-    } else {

-        buf = avfilter_get_audio_buffer_ref_from_arrays(frame->extended_data,

-                                                        frame->linesize[0], AV_PERM_READ,

-                                                        frame->nb_samples,

-                                                        frame->format,

-                                                        frame->channel_layout);

-    }

-    if (!buf) {

-        ret = AVERROR(ENOMEM);

-        goto fail;

-    }

-

-    avfilter_copy_frame_props(buf, frame);

-

-    buf->buf->priv = frame;

-    buf->buf->free = compat_free_buffer;

-

-    *pbuf = buf;

-

-    return 0;

-fail:

-    av_frame_free(&frame);

-    return ret;

-}

-

-int av_buffersink_read(AVFilterContext *ctx, AVFilterBufferRef **buf)

-{

-    return compat_read(ctx, buf, 0, 0);

-}

-

-int av_buffersink_read_samples(AVFilterContext *ctx, AVFilterBufferRef **buf,

-                               int nb_samples)

-{

-    return compat_read(ctx, buf, nb_samples, 0);

-}

-

-int av_buffersink_get_buffer_ref(AVFilterContext *ctx,

-                                  AVFilterBufferRef **bufref, int flags)

-{

-    *bufref = NULL;

-

-    av_assert0(    !strcmp(ctx->filter->name, "buffersink")

-                || !strcmp(ctx->filter->name, "abuffersink")

-                || !strcmp(ctx->filter->name, "ffbuffersink")

-                || !strcmp(ctx->filter->name, "ffabuffersink"));

-

-    return compat_read(ctx, bufref, 0, flags);

-}

-#endif

-

-AVRational av_buffersink_get_frame_rate(AVFilterContext *ctx)

-{

-    av_assert0(   !strcmp(ctx->filter->name, "buffersink")

-               || !strcmp(ctx->filter->name, "ffbuffersink"));

-

-    return ctx->inputs[0]->frame_rate;

-}

-

-int av_buffersink_poll_frame(AVFilterContext *ctx)

-{

-    BufferSinkContext *buf = ctx->priv;

-    AVFilterLink *inlink = ctx->inputs[0];

-

-    av_assert0(   !strcmp(ctx->filter->name, "buffersink")

-               || !strcmp(ctx->filter->name, "abuffersink")

-               || !strcmp(ctx->filter->name, "ffbuffersink")

-               || !strcmp(ctx->filter->name, "ffabuffersink"));

-

-    return av_fifo_size(buf->fifo)/sizeof(AVFilterBufferRef *) + ff_poll_frame(inlink);

-}

-

-static av_cold int vsink_init(AVFilterContext *ctx, const char *args, void *opaque)

-{

-    BufferSinkContext *buf = ctx->priv;

-    AVBufferSinkParams *params = opaque;

-

-    if (params && params->pixel_fmts) {

-        const int *pixel_fmts = params->pixel_fmts;

-

-        buf->pixel_fmts = ff_copy_int_list(pixel_fmts);

-        if (!buf->pixel_fmts)

-            return AVERROR(ENOMEM);

-    }

-

-    return common_init(ctx);

-}

-

-static int vsink_query_formats(AVFilterContext *ctx)

-{

-    BufferSinkContext *buf = ctx->priv;

-

-    if (buf->pixel_fmts)

-        ff_set_common_formats(ctx, ff_make_format_list(buf->pixel_fmts));

-    else

-        ff_default_query_formats(ctx);

-

-    return 0;

-}

-

-static const AVFilterPad ffbuffersink_inputs[] = {

-    {

-        .name      = "default",

-        .type      = AVMEDIA_TYPE_VIDEO,

-        .filter_frame = filter_frame,

-    },

-    { NULL },

-};

-

-AVFilter avfilter_vsink_ffbuffersink = {

-    .name      = "ffbuffersink",

-    .description = NULL_IF_CONFIG_SMALL("Buffer video frames, and make them available to the end of the filter graph."),

-    .priv_size = sizeof(BufferSinkContext),

-    .init_opaque = vsink_init,

-    .uninit    = uninit,

-

-    .query_formats = vsink_query_formats,

-    .inputs        = ffbuffersink_inputs,

-    .outputs       = NULL,

-};

-

-static const AVFilterPad buffersink_inputs[] = {

-    {

-        .name      = "default",

-        .type      = AVMEDIA_TYPE_VIDEO,

-        .filter_frame = filter_frame,

-    },

-    { NULL },

-};

-

-AVFilter avfilter_vsink_buffersink = {

-    .name      = "buffersink",

-    .description = NULL_IF_CONFIG_SMALL("Buffer video frames, and make them available to the end of the filter graph."),

-    .priv_size = sizeof(BufferSinkContext),

-    .init_opaque = vsink_init,

-    .uninit    = uninit,

-

-    .query_formats = vsink_query_formats,

-    .inputs        = buffersink_inputs,

-    .outputs       = NULL,

-};

-

-static int64_t *concat_channels_lists(const int64_t *layouts, const int *counts)

-{

-    int nb_layouts = 0, nb_counts = 0, i;

-    int64_t *list;

-

-    if (layouts)

-        for (; layouts[nb_layouts] != -1; nb_layouts++);

-    if (counts)

-        for (; counts[nb_counts] != -1; nb_counts++);

-    if (nb_counts > INT_MAX - 1 - nb_layouts)