FFmpeg coverage

GCC Code Coverage Report

Directory:	../../../ffmpeg/		Exec	Total	Coverage
File:	src/libavfilter/buffersrc.c	Lines:	131	190	68.9 %
Date:	2021-04-15 16:04:23	Branches:	75	144	52.1 %


/*
 * Copyright (c) 2008 Vitor Sessak
 *
 * 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
 * memory buffer source filter
 */

#include <float.h>

#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "libavutil/common.h"
#include "libavutil/frame.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/opt.h"
#include "libavutil/samplefmt.h"
#include "libavutil/timestamp.h"
#include "audio.h"
#include "avfilter.h"
#include "buffersrc.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

typedef struct BufferSourceContext {
    const AVClass    *class;
    AVRational        time_base;     ///< time_base to set in the output link
    AVRational        frame_rate;    ///< frame_rate to set in the output link
    unsigned          nb_failed_requests;

    /* video only */
    int               w, h;
    enum AVPixelFormat  pix_fmt;
    AVRational        pixel_aspect;
#if FF_API_SWS_PARAM_OPTION
    char              *sws_param;
#endif

    AVBufferRef *hw_frames_ctx;

    /* audio only */
    int sample_rate;
    enum AVSampleFormat sample_fmt;
    int channels;
    uint64_t channel_layout;
    char    *channel_layout_str;

    int eof;
} BufferSourceContext;

#define CHECK_VIDEO_PARAM_CHANGE(s, c, width, height, format, pts)\
    if (c->w != width || c->h != height || c->pix_fmt != format) {\
        av_log(s, AV_LOG_INFO, "filter context - w: %d h: %d fmt: %d, incoming frame - w: %d h: %d fmt: %d pts_time: %s\n",\
               c->w, c->h, c->pix_fmt, width, height, format, av_ts2timestr(pts, &s->outputs[0]->time_base));\
        av_log(s, AV_LOG_WARNING, "Changing video frame properties on the fly is not supported by all filters.\n");\
    }

#define CHECK_AUDIO_PARAM_CHANGE(s, c, srate, ch_layout, ch_count, format, pts)\
    if (c->sample_fmt != format || c->sample_rate != srate ||\
        c->channel_layout != ch_layout || c->channels != ch_count) {\
        av_log(s, AV_LOG_INFO, "filter context - fmt: %s r: %d layout: %"PRIX64" ch: %d, incoming frame - fmt: %s r: %d layout: %"PRIX64" ch: %d pts_time: %s\n",\
               av_get_sample_fmt_name(c->sample_fmt), c->sample_rate, c->channel_layout, c->channels,\
               av_get_sample_fmt_name(format), srate, ch_layout, ch_count, av_ts2timestr(pts, &s->outputs[0]->time_base));\
        av_log(s, AV_LOG_ERROR, "Changing audio frame properties on the fly is not supported.\n");\
        return AVERROR(EINVAL);\
    }

AVBufferSrcParameters *av_buffersrc_parameters_alloc(void)
{
    AVBufferSrcParameters *par = av_mallocz(sizeof(*par));
    if (!par)
        return NULL;

    par->format = -1;

    return par;
}

int av_buffersrc_parameters_set(AVFilterContext *ctx, AVBufferSrcParameters *param)
{
    BufferSourceContext *s = ctx->priv;

    if (param->time_base.num > 0 && param->time_base.den > 0)
        s->time_base = param->time_base;

    switch (ctx->filter->outputs[0].type) {
    case AVMEDIA_TYPE_VIDEO:
        if (param->format != AV_PIX_FMT_NONE) {
            s->pix_fmt = param->format;
        }
        if (param->width > 0)
            s->w = param->width;
        if (param->height > 0)
            s->h = param->height;
        if (param->sample_aspect_ratio.num > 0 && param->sample_aspect_ratio.den > 0)
            s->pixel_aspect = param->sample_aspect_ratio;
        if (param->frame_rate.num > 0 && param->frame_rate.den > 0)
            s->frame_rate = param->frame_rate;
        if (param->hw_frames_ctx) {
            av_buffer_unref(&s->hw_frames_ctx);
            s->hw_frames_ctx = av_buffer_ref(param->hw_frames_ctx);
            if (!s->hw_frames_ctx)
                return AVERROR(ENOMEM);
        }
        break;
    case AVMEDIA_TYPE_AUDIO:
        if (param->format != AV_SAMPLE_FMT_NONE) {
            s->sample_fmt = param->format;
        }
        if (param->sample_rate > 0)
            s->sample_rate = param->sample_rate;
        if (param->channel_layout)
            s->channel_layout = param->channel_layout;
        break;
    default:
        return AVERROR_BUG;
    }

    return 0;
}

int attribute_align_arg av_buffersrc_write_frame(AVFilterContext *ctx, const AVFrame *frame)
{
    return av_buffersrc_add_frame_flags(ctx, (AVFrame *)frame,
                                        AV_BUFFERSRC_FLAG_KEEP_REF);
}

int attribute_align_arg av_buffersrc_add_frame(AVFilterContext *ctx, AVFrame *frame)
{
    return av_buffersrc_add_frame_flags(ctx, frame, 0);
}

static int push_frame(AVFilterGraph *graph)
{
    int ret;

    while (1) {
        ret = ff_filter_graph_run_once(graph);
        if (ret == AVERROR(EAGAIN))
            break;
        if (ret < 0)
            return ret;
    }
    return 0;
}

int attribute_align_arg av_buffersrc_add_frame_flags(AVFilterContext *ctx, AVFrame *frame, int flags)
{
    BufferSourceContext *s = ctx->priv;
    AVFrame *copy;
    int refcounted, ret;

    if (frame && frame->channel_layout &&
        av_get_channel_layout_nb_channels(frame->channel_layout) != frame->channels) {
        av_log(ctx, AV_LOG_ERROR, "Layout indicates a different number of channels than actually present\n");
        return AVERROR(EINVAL);
    }

    s->nb_failed_requests = 0;

    if (!frame)
        return av_buffersrc_close(ctx, AV_NOPTS_VALUE, flags);
    if (s->eof)
        return AVERROR(EINVAL);

    refcounted = !!frame->buf[0];

    if (!(flags & AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT)) {

        switch (ctx->outputs[0]->type) {
        case AVMEDIA_TYPE_VIDEO:
            CHECK_VIDEO_PARAM_CHANGE(ctx, s, frame->width, frame->height,
                                     frame->format, frame->pts);
            break;
        case AVMEDIA_TYPE_AUDIO:
            /* For layouts unknown on input but known on link after negotiation. */
            if (!frame->channel_layout)
                frame->channel_layout = s->channel_layout;
            CHECK_AUDIO_PARAM_CHANGE(ctx, s, frame->sample_rate, frame->channel_layout,
                                     frame->channels, frame->format, frame->pts);
            break;
        default:
            return AVERROR(EINVAL);
        }

    }

    if (!(copy = av_frame_alloc()))
        return AVERROR(ENOMEM);

    if (refcounted && !(flags & AV_BUFFERSRC_FLAG_KEEP_REF)) {
        av_frame_move_ref(copy, frame);
    } else {
        ret = av_frame_ref(copy, frame);
        if (ret < 0) {
            av_frame_free(&copy);
            return ret;
        }
    }

    ret = ff_filter_frame(ctx->outputs[0], copy);
    if (ret < 0)
        return ret;

    if ((flags & AV_BUFFERSRC_FLAG_PUSH)) {
        ret = push_frame(ctx->graph);
        if (ret < 0)
            return ret;
    }

    return 0;
}

int av_buffersrc_close(AVFilterContext *ctx, int64_t pts, unsigned flags)
{
    BufferSourceContext *s = ctx->priv;

    s->eof = 1;
    ff_avfilter_link_set_in_status(ctx->outputs[0], AVERROR_EOF, pts);
    return (flags & AV_BUFFERSRC_FLAG_PUSH) ? push_frame(ctx->graph) : 0;
}

static av_cold int init_video(AVFilterContext *ctx)
{
    BufferSourceContext *c = ctx->priv;

    if (c->pix_fmt == AV_PIX_FMT_NONE || !c->w || !c->h ||
        av_q2d(c->time_base) <= 0) {
        av_log(ctx, AV_LOG_ERROR, "Invalid parameters provided.\n");
        return AVERROR(EINVAL);
    }

    av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d pixfmt:%s tb:%d/%d fr:%d/%d sar:%d/%d\n",
           c->w, c->h, av_get_pix_fmt_name(c->pix_fmt),
           c->time_base.num, c->time_base.den, c->frame_rate.num, c->frame_rate.den,
           c->pixel_aspect.num, c->pixel_aspect.den);

#if FF_API_SWS_PARAM_OPTION
    if (c->sws_param)
        av_log(ctx, AV_LOG_WARNING, "sws_param option is deprecated and ignored\n");
#endif

    return 0;
}

unsigned av_buffersrc_get_nb_failed_requests(AVFilterContext *buffer_src)
{
    return ((BufferSourceContext *)buffer_src->priv)->nb_failed_requests;
}

#define OFFSET(x) offsetof(BufferSourceContext, x)
#define A AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_AUDIO_PARAM
#define V AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

static const AVOption buffer_options[] = {
    { "width",         NULL,                     OFFSET(w),                AV_OPT_TYPE_INT,      { .i64 = 0 }, 0, INT_MAX, V },
    { "video_size",    NULL,                     OFFSET(w),                AV_OPT_TYPE_IMAGE_SIZE,                .flags = V },
    { "height",        NULL,                     OFFSET(h),                AV_OPT_TYPE_INT,      { .i64 = 0 }, 0, INT_MAX, V },
    { "pix_fmt",       NULL,                     OFFSET(pix_fmt),          AV_OPT_TYPE_PIXEL_FMT, { .i64 = AV_PIX_FMT_NONE }, .min = AV_PIX_FMT_NONE, .max = INT_MAX, .flags = V },
    { "sar",           "sample aspect ratio",    OFFSET(pixel_aspect),     AV_OPT_TYPE_RATIONAL, { .dbl = 0 }, 0, DBL_MAX, V },
    { "pixel_aspect",  "sample aspect ratio",    OFFSET(pixel_aspect),     AV_OPT_TYPE_RATIONAL, { .dbl = 0 }, 0, DBL_MAX, V },
    { "time_base",     NULL,                     OFFSET(time_base),        AV_OPT_TYPE_RATIONAL, { .dbl = 0 }, 0, DBL_MAX, V },
    { "frame_rate",    NULL,                     OFFSET(frame_rate),       AV_OPT_TYPE_RATIONAL, { .dbl = 0 }, 0, DBL_MAX, V },
#if FF_API_SWS_PARAM_OPTION
    { "sws_param",     NULL,                     OFFSET(sws_param),        AV_OPT_TYPE_STRING,                    .flags = V },
#endif
    { NULL },
};

AVFILTER_DEFINE_CLASS(buffer);

static const AVOption abuffer_options[] = {
    { "time_base",      NULL, OFFSET(time_base),           AV_OPT_TYPE_RATIONAL, { .dbl = 0 }, 0, INT_MAX, A },
    { "sample_rate",    NULL, OFFSET(sample_rate),         AV_OPT_TYPE_INT,      { .i64 = 0 }, 0, INT_MAX, A },
    { "sample_fmt",     NULL, OFFSET(sample_fmt),          AV_OPT_TYPE_SAMPLE_FMT, { .i64 = AV_SAMPLE_FMT_NONE }, .min = AV_SAMPLE_FMT_NONE, .max = INT_MAX, .flags = A },
    { "channel_layout", NULL, OFFSET(channel_layout_str),  AV_OPT_TYPE_STRING,             .flags = A },
    { "channels",       NULL, OFFSET(channels),            AV_OPT_TYPE_INT,      { .i64 = 0 }, 0, INT_MAX, A },
    { NULL },
};

AVFILTER_DEFINE_CLASS(abuffer);

static av_cold int init_audio(AVFilterContext *ctx)
{
    BufferSourceContext *s = ctx->priv;
    int ret = 0;

    if (s->sample_fmt == AV_SAMPLE_FMT_NONE) {
        av_log(ctx, AV_LOG_ERROR, "Sample format was not set or was invalid\n");
        return AVERROR(EINVAL);
    }

    if (s->channel_layout_str || s->channel_layout) {
        int n;

        if (!s->channel_layout) {
            s->channel_layout = av_get_channel_layout(s->channel_layout_str);
            if (!s->channel_layout) {
                av_log(ctx, AV_LOG_ERROR, "Invalid channel layout %s.\n",
                       s->channel_layout_str);
                return AVERROR(EINVAL);
            }
        }
        n = av_get_channel_layout_nb_channels(s->channel_layout);
        if (s->channels) {
            if (n != s->channels) {
                av_log(ctx, AV_LOG_ERROR,
                       "Mismatching channel count %d and layout '%s' "
                       "(%d channels)\n",
                       s->channels, s->channel_layout_str, n);
                return AVERROR(EINVAL);
            }
        }
        s->channels = n;
    } else if (!s->channels) {
        av_log(ctx, AV_LOG_ERROR, "Neither number of channels nor "
                                  "channel layout specified\n");
        return AVERROR(EINVAL);
    }

    if (!s->time_base.num)
        s->time_base = (AVRational){1, s->sample_rate};

    av_log(ctx, AV_LOG_VERBOSE,
           "tb:%d/%d samplefmt:%s samplerate:%d chlayout:%s\n",
           s->time_base.num, s->time_base.den, av_get_sample_fmt_name(s->sample_fmt),
           s->sample_rate, s->channel_layout_str);

    return ret;
}

static av_cold void uninit(AVFilterContext *ctx)
{
    BufferSourceContext *s = ctx->priv;
    av_buffer_unref(&s->hw_frames_ctx);
}

static int query_formats(AVFilterContext *ctx)
{
    BufferSourceContext *c = ctx->priv;
    AVFilterChannelLayouts *channel_layouts = NULL;
    AVFilterFormats *formats = NULL;
    AVFilterFormats *samplerates = NULL;
    int ret;

    switch (ctx->outputs[0]->type) {
    case AVMEDIA_TYPE_VIDEO:
        if ((ret = ff_add_format         (&formats, c->pix_fmt)) < 0 ||
            (ret = ff_set_common_formats (ctx     , formats   )) < 0)
            return ret;
        break;
    case AVMEDIA_TYPE_AUDIO:
        if ((ret = ff_add_format             (&formats    , c->sample_fmt )) < 0 ||
            (ret = ff_set_common_formats     (ctx         , formats       )) < 0 ||
            (ret = ff_add_format             (&samplerates, c->sample_rate)) < 0 ||
            (ret = ff_set_common_samplerates (ctx         , samplerates   )) < 0)
            return ret;

        if ((ret = ff_add_channel_layout(&channel_layouts,
                              c->channel_layout ? c->channel_layout :
                              FF_COUNT2LAYOUT(c->channels))) < 0)
            return ret;
        if ((ret = ff_set_common_channel_layouts(ctx, channel_layouts)) < 0)
            return ret;
        break;
    default:
        return AVERROR(EINVAL);
    }

    return 0;
}

static int config_props(AVFilterLink *link)
{
    BufferSourceContext *c = link->src->priv;

    switch (link->type) {
    case AVMEDIA_TYPE_VIDEO:
        link->w = c->w;
        link->h = c->h;
        link->sample_aspect_ratio = c->pixel_aspect;

        if (c->hw_frames_ctx) {
            link->hw_frames_ctx = av_buffer_ref(c->hw_frames_ctx);
            if (!link->hw_frames_ctx)
                return AVERROR(ENOMEM);
        }
        break;
    case AVMEDIA_TYPE_AUDIO:
        if (!c->channel_layout)
            c->channel_layout = link->channel_layout;
        break;
    default:
        return AVERROR(EINVAL);
    }

    link->time_base = c->time_base;
    link->frame_rate = c->frame_rate;
    return 0;
}

static int request_frame(AVFilterLink *link)
{
    BufferSourceContext *c = link->src->priv;

    if (c->eof)
        return AVERROR_EOF;
    c->nb_failed_requests++;
    return AVERROR(EAGAIN);
}

static const AVFilterPad avfilter_vsrc_buffer_outputs[] = {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_VIDEO,
        .request_frame = request_frame,
        .config_props  = config_props,
    },
    { NULL }
};

AVFilter ff_vsrc_buffer = {
    .name      = "buffer",
    .description = NULL_IF_CONFIG_SMALL("Buffer video frames, and make them accessible to the filterchain."),
    .priv_size = sizeof(BufferSourceContext),
    .query_formats = query_formats,

    .init      = init_video,
    .uninit    = uninit,

    .inputs    = NULL,
    .outputs   = avfilter_vsrc_buffer_outputs,
    .priv_class = &buffer_class,
};

static const AVFilterPad avfilter_asrc_abuffer_outputs[] = {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_AUDIO,
        .request_frame = request_frame,
        .config_props  = config_props,
    },
    { NULL }
};

AVFilter ff_asrc_abuffer = {
    .name          = "abuffer",
    .description   = NULL_IF_CONFIG_SMALL("Buffer audio frames, and make them accessible to the filterchain."),
    .priv_size     = sizeof(BufferSourceContext),
    .query_formats = query_formats,

    .init      = init_audio,
    .uninit    = uninit,

    .inputs    = NULL,
    .outputs   = avfilter_asrc_abuffer_outputs,
    .priv_class = &abuffer_class,
};


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			/*
2			* Copyright (c) 2008 Vitor Sessak
3			*
4			* This file is part of FFmpeg.
5			*
6			* FFmpeg is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU Lesser General Public
8			* License as published by the Free Software Foundation; either
9			* version 2.1 of the License, or (at your option) any later version.
10			*
11			* FFmpeg is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14			* Lesser General Public License for more details.
15			*
16			* You should have received a copy of the GNU Lesser General Public
17			* License along with FFmpeg; if not, write to the Free Software
18			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19			*/
20
21			/**
22			* @file
23			* memory buffer source filter
24			*/
25
26			#include <float.h>
27
28			#include "libavutil/avassert.h"
29			#include "libavutil/channel_layout.h"
30			#include "libavutil/common.h"
31			#include "libavutil/frame.h"
32			#include "libavutil/imgutils.h"
33			#include "libavutil/internal.h"
34			#include "libavutil/opt.h"
35			#include "libavutil/samplefmt.h"
36			#include "libavutil/timestamp.h"
37			#include "audio.h"
38			#include "avfilter.h"
39			#include "buffersrc.h"
40			#include "formats.h"
41			#include "internal.h"
42			#include "video.h"
43
44			typedef struct BufferSourceContext {
45			const AVClass *class;
46			AVRational time_base; ///< time_base to set in the output link
47			AVRational frame_rate; ///< frame_rate to set in the output link
48			unsigned nb_failed_requests;
49
50			/* video only */
51			int w, h;
52			enum AVPixelFormat pix_fmt;
53			AVRational pixel_aspect;
54			#if FF_API_SWS_PARAM_OPTION
55			char *sws_param;
56			#endif
57
58			AVBufferRef *hw_frames_ctx;
59
60			/* audio only */
61			int sample_rate;
62			enum AVSampleFormat sample_fmt;
63			int channels;
64			uint64_t channel_layout;
65			char *channel_layout_str;
66
67			int eof;
68			} BufferSourceContext;
69
70			#define CHECK_VIDEO_PARAM_CHANGE(s, c, width, height, format, pts)\
71			if (c->w != width \|\| c->h != height \|\| c->pix_fmt != format) {\
72			av_log(s, AV_LOG_INFO, "filter context - w: %d h: %d fmt: %d, incoming frame - w: %d h: %d fmt: %d pts_time: %s\n",\
73			c->w, c->h, c->pix_fmt, width, height, format, av_ts2timestr(pts, &s->outputs[0]->time_base));\
74			av_log(s, AV_LOG_WARNING, "Changing video frame properties on the fly is not supported by all filters.\n");\
75			}
76
77			#define CHECK_AUDIO_PARAM_CHANGE(s, c, srate, ch_layout, ch_count, format, pts)\
78			if (c->sample_fmt != format \|\| c->sample_rate != srate \|\|\
79			c->channel_layout != ch_layout \|\| c->channels != ch_count) {\
80			av_log(s, AV_LOG_INFO, "filter context - fmt: %s r: %d layout: %"PRIX64" ch: %d, incoming frame - fmt: %s r: %d layout: %"PRIX64" ch: %d pts_time: %s\n",\
81			av_get_sample_fmt_name(c->sample_fmt), c->sample_rate, c->channel_layout, c->channels,\
82			av_get_sample_fmt_name(format), srate, ch_layout, ch_count, av_ts2timestr(pts, &s->outputs[0]->time_base));\
83			av_log(s, AV_LOG_ERROR, "Changing audio frame properties on the fly is not supported.\n");\
84			return AVERROR(EINVAL);\
85			}
86
87		4691	AVBufferSrcParameters *av_buffersrc_parameters_alloc(void)
88			{
89		4691	AVBufferSrcParameters par = av_mallocz(sizeof(par));
90	✗✓	4691	if (!par)
91			return NULL;
92
93		4691	par->format = -1;
94
95		4691	return par;
96			}
97
98		4691	int av_buffersrc_parameters_set(AVFilterContext ctx, AVBufferSrcParameters param)
99			{
100		4691	BufferSourceContext *s = ctx->priv;
101
102	✗✓✗✗	4691	if (param->time_base.num > 0 && param->time_base.den > 0)
103			s->time_base = param->time_base;
104
105	✓✗✗	4691	switch (ctx->filter->outputs[0].type) {
106		4691	case AVMEDIA_TYPE_VIDEO:
107	✗✓	4691	if (param->format != AV_PIX_FMT_NONE) {
108			s->pix_fmt = param->format;
109			}
110	✗✓	4691	if (param->width > 0)
111			s->w = param->width;
112	✗✓	4691	if (param->height > 0)
113			s->h = param->height;
114	✗✓✗✗	4691	if (param->sample_aspect_ratio.num > 0 && param->sample_aspect_ratio.den > 0)
115			s->pixel_aspect = param->sample_aspect_ratio;
116	✗✓✗✗	4691	if (param->frame_rate.num > 0 && param->frame_rate.den > 0)
117			s->frame_rate = param->frame_rate;
118	✗✓	4691	if (param->hw_frames_ctx) {
119			av_buffer_unref(&s->hw_frames_ctx);
120			s->hw_frames_ctx = av_buffer_ref(param->hw_frames_ctx);
121			if (!s->hw_frames_ctx)
122			return AVERROR(ENOMEM);
123			}
124		4691	break;
125			case AVMEDIA_TYPE_AUDIO:
126			if (param->format != AV_SAMPLE_FMT_NONE) {
127			s->sample_fmt = param->format;
128			}
129			if (param->sample_rate > 0)
130			s->sample_rate = param->sample_rate;
131			if (param->channel_layout)
132			s->channel_layout = param->channel_layout;
133			break;
134			default:
135			return AVERROR_BUG;
136			}
137
138		4691	return 0;
139			}
140
141			int attribute_align_arg av_buffersrc_write_frame(AVFilterContext ctx, const AVFrame frame)
142			{
143			return av_buffersrc_add_frame_flags(ctx, (AVFrame *)frame,
144			AV_BUFFERSRC_FLAG_KEEP_REF);
145			}
146
147		24	int attribute_align_arg av_buffersrc_add_frame(AVFilterContext ctx, AVFrame frame)
148			{
149		24	return av_buffersrc_add_frame_flags(ctx, frame, 0);
150			}
151
152		2707251	static int push_frame(AVFilterGraph *graph)
153			{
154			int ret;
155
156			while (1) {
157		2707251	ret = ff_filter_graph_run_once(graph);
158	✓✓	2707251	if (ret == AVERROR(EAGAIN))
159		386060	break;
160	✗✓	2321191	if (ret < 0)
161			return ret;
162			}
163		386060	return 0;
164			}
165
166		380313	int attribute_align_arg av_buffersrc_add_frame_flags(AVFilterContext ctx, AVFrame frame, int flags)
167			{
168		380313	BufferSourceContext *s = ctx->priv;
169			AVFrame *copy;
170			int refcounted, ret;
171
172	✓✓✓✓	380313	if (frame && frame->channel_layout &&
173	✗✓	279685	av_get_channel_layout_nb_channels(frame->channel_layout) != frame->channels) {
174			av_log(ctx, AV_LOG_ERROR, "Layout indicates a different number of channels than actually present\n");
175			return AVERROR(EINVAL);
176			}
177
178		380313	s->nb_failed_requests = 0;
179
180	✓✓	380313	if (!frame)
181		5	return av_buffersrc_close(ctx, AV_NOPTS_VALUE, flags);
182	✗✓	380308	if (s->eof)
183			return AVERROR(EINVAL);
184
185		380308	refcounted = !!frame->buf[0];
186
187	✓✗	380308	if (!(flags & AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT)) {
188
189	✓✓✗	380308	switch (ctx->outputs[0]->type) {
190		99786	case AVMEDIA_TYPE_VIDEO:
191	✓✗✓✗ ✗✓	99786	CHECK_VIDEO_PARAM_CHANGE(ctx, s, frame->width, frame->height,
192			frame->format, frame->pts);
193		99786	break;
194		280522	case AVMEDIA_TYPE_AUDIO:
195			/* For layouts unknown on input but known on link after negotiation. */
196	✓✓	280522	if (!frame->channel_layout)
197		837	frame->channel_layout = s->channel_layout;
198	✓✗✓✗ ✓✗✗✓	280522	CHECK_AUDIO_PARAM_CHANGE(ctx, s, frame->sample_rate, frame->channel_layout,
199			frame->channels, frame->format, frame->pts);
200		280522	break;
201			default:
202			return AVERROR(EINVAL);
203			}
204
205			}
206
207	✗✓	380308	if (!(copy = av_frame_alloc()))
208			return AVERROR(ENOMEM);
209
210	✓✗✓✓	380308	if (refcounted && !(flags & AV_BUFFERSRC_FLAG_KEEP_REF)) {
211		379879	av_frame_move_ref(copy, frame);
212			} else {
213		429	ret = av_frame_ref(copy, frame);
214	✗✓	429	if (ret < 0) {
215			av_frame_free(&copy);
216			return ret;
217			}
218			}
219
220		380308	ret = ff_filter_frame(ctx->outputs[0], copy);
221	✗✓	380308	if (ret < 0)
222			return ret;
223
224	✓✓	380308	if ((flags & AV_BUFFERSRC_FLAG_PUSH)) {
225		380289	ret = push_frame(ctx->graph);
226	✗✓	380289	if (ret < 0)
227			return ret;
228			}
229
230		380308	return 0;
231			}
232
233		5776	int av_buffersrc_close(AVFilterContext *ctx, int64_t pts, unsigned flags)
234			{
235		5776	BufferSourceContext *s = ctx->priv;
236
237		5776	s->eof = 1;
238		5776	ff_avfilter_link_set_in_status(ctx->outputs[0], AVERROR_EOF, pts);
239	✓✓	5776	return (flags & AV_BUFFERSRC_FLAG_PUSH) ? push_frame(ctx->graph) : 0;
240			}
241
242		4691	static av_cold int init_video(AVFilterContext *ctx)
243			{
244		4691	BufferSourceContext *c = ctx->priv;
245
246	✓✗✓✗ ✓✗✗✓	9382	if (c->pix_fmt == AV_PIX_FMT_NONE \|\| !c->w \|\| !c->h \|\|
247		4691	av_q2d(c->time_base) <= 0) {
248			av_log(ctx, AV_LOG_ERROR, "Invalid parameters provided.\n");
249			return AVERROR(EINVAL);
250			}
251
252		4691	av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d pixfmt:%s tb:%d/%d fr:%d/%d sar:%d/%d\n",
253			c->w, c->h, av_get_pix_fmt_name(c->pix_fmt),
254			c->time_base.num, c->time_base.den, c->frame_rate.num, c->frame_rate.den,
255			c->pixel_aspect.num, c->pixel_aspect.den);
256
257			#if FF_API_SWS_PARAM_OPTION
258	✗✓	4691	if (c->sws_param)
259			av_log(ctx, AV_LOG_WARNING, "sws_param option is deprecated and ignored\n");
260			#endif
261
262		4691	return 0;
263			}
264
265		365597	unsigned av_buffersrc_get_nb_failed_requests(AVFilterContext *buffer_src)
266			{
267		365597	return ((BufferSourceContext *)buffer_src->priv)->nb_failed_requests;
268			}
269
270			#define OFFSET(x) offsetof(BufferSourceContext, x)
271			#define A AV_OPT_FLAG_FILTERING_PARAM\|AV_OPT_FLAG_AUDIO_PARAM
272			#define V AV_OPT_FLAG_FILTERING_PARAM\|AV_OPT_FLAG_VIDEO_PARAM
273
274			static const AVOption buffer_options[] = {
275			{ "width", NULL, OFFSET(w), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, V },
276			{ "video_size", NULL, OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, .flags = V },
277			{ "height", NULL, OFFSET(h), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, V },
278			{ "pix_fmt", NULL, OFFSET(pix_fmt), AV_OPT_TYPE_PIXEL_FMT, { .i64 = AV_PIX_FMT_NONE }, .min = AV_PIX_FMT_NONE, .max = INT_MAX, .flags = V },
279			{ "sar", "sample aspect ratio", OFFSET(pixel_aspect), AV_OPT_TYPE_RATIONAL, { .dbl = 0 }, 0, DBL_MAX, V },
280			{ "pixel_aspect", "sample aspect ratio", OFFSET(pixel_aspect), AV_OPT_TYPE_RATIONAL, { .dbl = 0 }, 0, DBL_MAX, V },
281			{ "time_base", NULL, OFFSET(time_base), AV_OPT_TYPE_RATIONAL, { .dbl = 0 }, 0, DBL_MAX, V },
282			{ "frame_rate", NULL, OFFSET(frame_rate), AV_OPT_TYPE_RATIONAL, { .dbl = 0 }, 0, DBL_MAX, V },
283			#if FF_API_SWS_PARAM_OPTION
284			{ "sws_param", NULL, OFFSET(sws_param), AV_OPT_TYPE_STRING, .flags = V },
285			#endif
286			{ NULL },
287			};
288
289			AVFILTER_DEFINE_CLASS(buffer);
290
291			static const AVOption abuffer_options[] = {
292			{ "time_base", NULL, OFFSET(time_base), AV_OPT_TYPE_RATIONAL, { .dbl = 0 }, 0, INT_MAX, A },
293			{ "sample_rate", NULL, OFFSET(sample_rate), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, A },
294			{ "sample_fmt", NULL, OFFSET(sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, { .i64 = AV_SAMPLE_FMT_NONE }, .min = AV_SAMPLE_FMT_NONE, .max = INT_MAX, .flags = A },
295			{ "channel_layout", NULL, OFFSET(channel_layout_str), AV_OPT_TYPE_STRING, .flags = A },
296			{ "channels", NULL, OFFSET(channels), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, A },
297			{ NULL },
298			};
299
300			AVFILTER_DEFINE_CLASS(abuffer);
301
302		1131	static av_cold int init_audio(AVFilterContext *ctx)
303			{
304		1131	BufferSourceContext *s = ctx->priv;
305		1131	int ret = 0;
306
307	✗✓	1131	if (s->sample_fmt == AV_SAMPLE_FMT_NONE) {
308			av_log(ctx, AV_LOG_ERROR, "Sample format was not set or was invalid\n");
309			return AVERROR(EINVAL);
310			}
311
312	✓✓✗✓	1131	if (s->channel_layout_str \|\| s->channel_layout) {
313			int n;
314
315	✓✗	1125	if (!s->channel_layout) {
316		1125	s->channel_layout = av_get_channel_layout(s->channel_layout_str);
317	✗✓	1125	if (!s->channel_layout) {
318			av_log(ctx, AV_LOG_ERROR, "Invalid channel layout %s.\n",
319			s->channel_layout_str);
320			return AVERROR(EINVAL);
321			}
322			}
323		1125	n = av_get_channel_layout_nb_channels(s->channel_layout);
324	✗✓	1125	if (s->channels) {
325			if (n != s->channels) {
326			av_log(ctx, AV_LOG_ERROR,
327			"Mismatching channel count %d and layout '%s' "
328			"(%d channels)\n",
329			s->channels, s->channel_layout_str, n);
330			return AVERROR(EINVAL);
331			}
332			}
333		1125	s->channels = n;
334	✗✓	6	} else if (!s->channels) {
335			av_log(ctx, AV_LOG_ERROR, "Neither number of channels nor "
336			"channel layout specified\n");
337			return AVERROR(EINVAL);
338			}
339
340	✗✓	1131	if (!s->time_base.num)
341			s->time_base = (AVRational){1, s->sample_rate};
342
343		1131	av_log(ctx, AV_LOG_VERBOSE,
344			"tb:%d/%d samplefmt:%s samplerate:%d chlayout:%s\n",
345			s->time_base.num, s->time_base.den, av_get_sample_fmt_name(s->sample_fmt),
346			s->sample_rate, s->channel_layout_str);
347
348		1131	return ret;
349			}
350
351		5822	static av_cold void uninit(AVFilterContext *ctx)
352			{
353		5822	BufferSourceContext *s = ctx->priv;
354		5822	av_buffer_unref(&s->hw_frames_ctx);
355		5822	}
356
357		5822	static int query_formats(AVFilterContext *ctx)
358			{
359		5822	BufferSourceContext *c = ctx->priv;
360		5822	AVFilterChannelLayouts *channel_layouts = NULL;
361		5822	AVFilterFormats *formats = NULL;
362		5822	AVFilterFormats *samplerates = NULL;
363			int ret;
364
365	✓✓✗	5822	switch (ctx->outputs[0]->type) {
366		4691	case AVMEDIA_TYPE_VIDEO:
367	✓✗✗✓	9382	if ((ret = ff_add_format (&formats, c->pix_fmt)) < 0 \|\|
368		4691	(ret = ff_set_common_formats (ctx , formats )) < 0)
369			return ret;
370		4691	break;
371		1131	case AVMEDIA_TYPE_AUDIO:
372	✓✗✓✗	2262	if ((ret = ff_add_format (&formats , c->sample_fmt )) < 0 \|\|
373	✓✗	2262	(ret = ff_set_common_formats (ctx , formats )) < 0 \|\|
374	✗✓	2262	(ret = ff_add_format (&samplerates, c->sample_rate)) < 0 \|\|
375		1131	(ret = ff_set_common_samplerates (ctx , samplerates )) < 0)
376			return ret;
377
378	✗✓	1131	if ((ret = ff_add_channel_layout(&channel_layouts,
379	✓✓	1131	c->channel_layout ? c->channel_layout :
380		6	FF_COUNT2LAYOUT(c->channels))) < 0)
381			return ret;
382	✗✓	1131	if ((ret = ff_set_common_channel_layouts(ctx, channel_layouts)) < 0)
383			return ret;
384		1131	break;
385			default:
386			return AVERROR(EINVAL);
387			}
388
389		5822	return 0;
390			}
391
392		5822	static int config_props(AVFilterLink *link)
393			{
394		5822	BufferSourceContext *c = link->src->priv;
395
396	✓✓✗	5822	switch (link->type) {
397		4691	case AVMEDIA_TYPE_VIDEO:
398		4691	link->w = c->w;
399		4691	link->h = c->h;
400		4691	link->sample_aspect_ratio = c->pixel_aspect;
401
402	✗✓	4691	if (c->hw_frames_ctx) {
403			link->hw_frames_ctx = av_buffer_ref(c->hw_frames_ctx);
404			if (!link->hw_frames_ctx)
405			return AVERROR(ENOMEM);
406			}
407		4691	break;
408		1131	case AVMEDIA_TYPE_AUDIO:
409	✓✓	1131	if (!c->channel_layout)
410		6	c->channel_layout = link->channel_layout;
411		1131	break;
412			default:
413			return AVERROR(EINVAL);
414			}
415
416		5822	link->time_base = c->time_base;
417		5822	link->frame_rate = c->frame_rate;
418		5822	return 0;
419			}
420
421		348011	static int request_frame(AVFilterLink *link)
422			{
423		348011	BufferSourceContext *c = link->src->priv;
424
425	✗✓	348011	if (c->eof)
426			return AVERROR_EOF;
427		348011	c->nb_failed_requests++;
428		348011	return AVERROR(EAGAIN);
429			}
430
431			static const AVFilterPad avfilter_vsrc_buffer_outputs[] = {
432			{
433			.name = "default",
434			.type = AVMEDIA_TYPE_VIDEO,
435			.request_frame = request_frame,
436			.config_props = config_props,
437			},
438			{ NULL }
439			};
440
441			AVFilter ff_vsrc_buffer = {
442			.name = "buffer",
443			.description = NULL_IF_CONFIG_SMALL("Buffer video frames, and make them accessible to the filterchain."),
444			.priv_size = sizeof(BufferSourceContext),
445			.query_formats = query_formats,
446
447			.init = init_video,
448			.uninit = uninit,
449
450			.inputs = NULL,
451			.outputs = avfilter_vsrc_buffer_outputs,
452			.priv_class = &buffer_class,
453			};
454
455			static const AVFilterPad avfilter_asrc_abuffer_outputs[] = {
456			{
457			.name = "default",
458			.type = AVMEDIA_TYPE_AUDIO,
459			.request_frame = request_frame,
460			.config_props = config_props,
461			},
462			{ NULL }
463			};
464
465			AVFilter ff_asrc_abuffer = {
466			.name = "abuffer",
467			.description = NULL_IF_CONFIG_SMALL("Buffer audio frames, and make them accessible to the filterchain."),
468			.priv_size = sizeof(BufferSourceContext),
469			.query_formats = query_formats,
470
471			.init = init_audio,
472			.uninit = uninit,
473
474			.inputs = NULL,
475			.outputs = avfilter_asrc_abuffer_outputs,
476			.priv_class = &abuffer_class,
477			};