FFmpeg coverage

GCC Code Coverage Report

Directory:	../../../ffmpeg/		Exec	Total	Coverage
File:	src/libavfilter/buffersrc.c	Lines:	140	202	69.3 %
Date:	2020-08-13 15:06:06	Branches:	77	150	51.3 %


/*
 * 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 av_buffersrc_add_frame_internal(AVFilterContext *ctx,
                                           AVFrame *frame, int flags);

int attribute_align_arg av_buffersrc_add_frame_flags(AVFilterContext *ctx, AVFrame *frame, int flags)
{
    AVFrame *copy = NULL;
    int ret = 0;

    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);
    }

    if (!(flags & AV_BUFFERSRC_FLAG_KEEP_REF) || !frame)
        return av_buffersrc_add_frame_internal(ctx, frame, flags);

    if (!(copy = av_frame_alloc()))
        return AVERROR(ENOMEM);
    ret = av_frame_ref(copy, frame);
    if (ret >= 0)
        ret = av_buffersrc_add_frame_internal(ctx, copy, flags);

    av_frame_free(&copy);
    return ret;
}

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;
}

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

    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) {
        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		4672	AVBufferSrcParameters *av_buffersrc_parameters_alloc(void)
88			{
89		4672	AVBufferSrcParameters par = av_mallocz(sizeof(par));
90	✗✓	4672	if (!par)
91			return NULL;
92
93		4672	par->format = -1;
94
95		4672	return par;
96			}
97
98		4672	int av_buffersrc_parameters_set(AVFilterContext ctx, AVBufferSrcParameters param)
99			{
100		4672	BufferSourceContext *s = ctx->priv;
101
102	✗✓✗✗	4672	if (param->time_base.num > 0 && param->time_base.den > 0)
103			s->time_base = param->time_base;
104
105	✓✗✗	4672	switch (ctx->filter->outputs[0].type) {
106		4672	case AVMEDIA_TYPE_VIDEO:
107	✗✓	4672	if (param->format != AV_PIX_FMT_NONE) {
108			s->pix_fmt = param->format;
109			}
110	✗✓	4672	if (param->width > 0)
111			s->w = param->width;
112	✗✓	4672	if (param->height > 0)
113			s->h = param->height;
114	✗✓✗✗	4672	if (param->sample_aspect_ratio.num > 0 && param->sample_aspect_ratio.den > 0)
115			s->pixel_aspect = param->sample_aspect_ratio;
116	✗✓✗✗	4672	if (param->frame_rate.num > 0 && param->frame_rate.den > 0)
117			s->frame_rate = param->frame_rate;
118	✗✓	4672	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		4672	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		4672	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			static int av_buffersrc_add_frame_internal(AVFilterContext *ctx,
153			AVFrame *frame, int flags);
154
155		424966	int attribute_align_arg av_buffersrc_add_frame_flags(AVFilterContext ctx, AVFrame frame, int flags)
156			{
157		424966	AVFrame *copy = NULL;
158		424966	int ret = 0;
159
160	✓✓✓✓	424966	if (frame && frame->channel_layout &&
161	✗✓	324314	av_get_channel_layout_nb_channels(frame->channel_layout) != frame->channels) {
162			av_log(ctx, AV_LOG_ERROR, "Layout indicates a different number of channels than actually present\n");
163			return AVERROR(EINVAL);
164			}
165
166	✓✓✗✓	424966	if (!(flags & AV_BUFFERSRC_FLAG_KEEP_REF) \|\| !frame)
167		424537	return av_buffersrc_add_frame_internal(ctx, frame, flags);
168
169	✗✓	429	if (!(copy = av_frame_alloc()))
170			return AVERROR(ENOMEM);
171		429	ret = av_frame_ref(copy, frame);
172	✓✗	429	if (ret >= 0)
173		429	ret = av_buffersrc_add_frame_internal(ctx, copy, flags);
174
175		429	av_frame_free(&copy);
176		429	return ret;
177			}
178
179		3200847	static int push_frame(AVFilterGraph *graph)
180			{
181			int ret;
182
183			while (1) {
184		3200847	ret = ff_filter_graph_run_once(graph);
185	✓✓	3200847	if (ret == AVERROR(EAGAIN))
186		430683	break;
187	✗✓	2770164	if (ret < 0)
188			return ret;
189			}
190		430683	return 0;
191			}
192
193		424966	static int av_buffersrc_add_frame_internal(AVFilterContext *ctx,
194			AVFrame *frame, int flags)
195			{
196		424966	BufferSourceContext *s = ctx->priv;
197			AVFrame *copy;
198			int refcounted, ret;
199
200		424966	s->nb_failed_requests = 0;
201
202	✓✓	424966	if (!frame)
203		5	return av_buffersrc_close(ctx, AV_NOPTS_VALUE, flags);
204	✗✓	424961	if (s->eof)
205			return AVERROR(EINVAL);
206
207		424961	refcounted = !!frame->buf[0];
208
209	✓✗	424961	if (!(flags & AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT)) {
210
211	✓✓✗	424961	switch (ctx->outputs[0]->type) {
212		99552	case AVMEDIA_TYPE_VIDEO:
213	✓✗✓✗ ✗✓	99552	CHECK_VIDEO_PARAM_CHANGE(ctx, s, frame->width, frame->height,
214			frame->format, frame->pts);
215		99552	break;
216		325409	case AVMEDIA_TYPE_AUDIO:
217			/* For layouts unknown on input but known on link after negotiation. */
218	✓✓	325409	if (!frame->channel_layout)
219		1095	frame->channel_layout = s->channel_layout;
220	✓✗✓✗ ✓✗✗✓	325409	CHECK_AUDIO_PARAM_CHANGE(ctx, s, frame->sample_rate, frame->channel_layout,
221			frame->channels, frame->format, frame->pts);
222		325409	break;
223			default:
224			return AVERROR(EINVAL);
225			}
226
227			}
228
229	✗✓	424961	if (!(copy = av_frame_alloc()))
230			return AVERROR(ENOMEM);
231
232	✓✗	424961	if (refcounted) {
233		424961	av_frame_move_ref(copy, frame);
234			} else {
235			ret = av_frame_ref(copy, frame);
236			if (ret < 0) {
237			av_frame_free(&copy);
238			return ret;
239			}
240			}
241
242		424961	ret = ff_filter_frame(ctx->outputs[0], copy);
243	✗✓	424961	if (ret < 0)
244			return ret;
245
246	✓✓	424961	if ((flags & AV_BUFFERSRC_FLAG_PUSH)) {
247		424942	ret = push_frame(ctx->graph);
248	✗✓	424942	if (ret < 0)
249			return ret;
250			}
251
252		424961	return 0;
253			}
254
255		5746	int av_buffersrc_close(AVFilterContext *ctx, int64_t pts, unsigned flags)
256			{
257		5746	BufferSourceContext *s = ctx->priv;
258
259		5746	s->eof = 1;
260		5746	ff_avfilter_link_set_in_status(ctx->outputs[0], AVERROR_EOF, pts);
261	✓✓	5746	return (flags & AV_BUFFERSRC_FLAG_PUSH) ? push_frame(ctx->graph) : 0;
262			}
263
264		4672	static av_cold int init_video(AVFilterContext *ctx)
265			{
266		4672	BufferSourceContext *c = ctx->priv;
267
268	✓✗✓✗ ✓✗✗✓	9344	if (c->pix_fmt == AV_PIX_FMT_NONE \|\| !c->w \|\| !c->h \|\|
269		4672	av_q2d(c->time_base) <= 0) {
270			av_log(ctx, AV_LOG_ERROR, "Invalid parameters provided.\n");
271			return AVERROR(EINVAL);
272			}
273
274		4672	av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d pixfmt:%s tb:%d/%d fr:%d/%d sar:%d/%d\n",
275			c->w, c->h, av_get_pix_fmt_name(c->pix_fmt),
276			c->time_base.num, c->time_base.den, c->frame_rate.num, c->frame_rate.den,
277			c->pixel_aspect.num, c->pixel_aspect.den);
278
279			#if FF_API_SWS_PARAM_OPTION
280	✗✓	4672	if (c->sws_param)
281			av_log(ctx, AV_LOG_WARNING, "sws_param option is deprecated and ignored\n");
282			#endif
283
284		4672	return 0;
285			}
286
287		410987	unsigned av_buffersrc_get_nb_failed_requests(AVFilterContext *buffer_src)
288			{
289		410987	return ((BufferSourceContext *)buffer_src->priv)->nb_failed_requests;
290			}
291
292			#define OFFSET(x) offsetof(BufferSourceContext, x)
293			#define A AV_OPT_FLAG_FILTERING_PARAM\|AV_OPT_FLAG_AUDIO_PARAM
294			#define V AV_OPT_FLAG_FILTERING_PARAM\|AV_OPT_FLAG_VIDEO_PARAM
295
296			static const AVOption buffer_options[] = {
297			{ "width", NULL, OFFSET(w), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, V },
298			{ "video_size", NULL, OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, .flags = V },
299			{ "height", NULL, OFFSET(h), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, V },
300			{ "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 },
301			{ "sar", "sample aspect ratio", OFFSET(pixel_aspect), AV_OPT_TYPE_RATIONAL, { .dbl = 0 }, 0, DBL_MAX, V },
302			{ "pixel_aspect", "sample aspect ratio", OFFSET(pixel_aspect), AV_OPT_TYPE_RATIONAL, { .dbl = 0 }, 0, DBL_MAX, V },
303			{ "time_base", NULL, OFFSET(time_base), AV_OPT_TYPE_RATIONAL, { .dbl = 0 }, 0, DBL_MAX, V },
304			{ "frame_rate", NULL, OFFSET(frame_rate), AV_OPT_TYPE_RATIONAL, { .dbl = 0 }, 0, DBL_MAX, V },
305			#if FF_API_SWS_PARAM_OPTION
306			{ "sws_param", NULL, OFFSET(sws_param), AV_OPT_TYPE_STRING, .flags = V },
307			#endif
308			{ NULL },
309			};
310
311			AVFILTER_DEFINE_CLASS(buffer);
312
313			static const AVOption abuffer_options[] = {
314			{ "time_base", NULL, OFFSET(time_base), AV_OPT_TYPE_RATIONAL, { .dbl = 0 }, 0, INT_MAX, A },
315			{ "sample_rate", NULL, OFFSET(sample_rate), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, A },
316			{ "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 },
317			{ "channel_layout", NULL, OFFSET(channel_layout_str), AV_OPT_TYPE_STRING, .flags = A },
318			{ "channels", NULL, OFFSET(channels), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, A },
319			{ NULL },
320			};
321
322			AVFILTER_DEFINE_CLASS(abuffer);
323
324		1122	static av_cold int init_audio(AVFilterContext *ctx)
325			{
326		1122	BufferSourceContext *s = ctx->priv;
327		1122	int ret = 0;
328
329	✗✓	1122	if (s->sample_fmt == AV_SAMPLE_FMT_NONE) {
330			av_log(ctx, AV_LOG_ERROR, "Sample format was not set or was invalid\n");
331			return AVERROR(EINVAL);
332			}
333
334	✓✓✗✓	1122	if (s->channel_layout_str \|\| s->channel_layout) {
335			int n;
336
337	✓✗	1116	if (!s->channel_layout) {
338		1116	s->channel_layout = av_get_channel_layout(s->channel_layout_str);
339	✗✓	1116	if (!s->channel_layout) {
340			av_log(ctx, AV_LOG_ERROR, "Invalid channel layout %s.\n",
341			s->channel_layout_str);
342			return AVERROR(EINVAL);
343			}
344			}
345		1116	n = av_get_channel_layout_nb_channels(s->channel_layout);
346	✗✓	1116	if (s->channels) {
347			if (n != s->channels) {
348			av_log(ctx, AV_LOG_ERROR,
349			"Mismatching channel count %d and layout '%s' "
350			"(%d channels)\n",
351			s->channels, s->channel_layout_str, n);
352			return AVERROR(EINVAL);
353			}
354			}
355		1116	s->channels = n;
356	✗✓	6	} else if (!s->channels) {
357			av_log(ctx, AV_LOG_ERROR, "Neither number of channels nor "
358			"channel layout specified\n");
359			return AVERROR(EINVAL);
360			}
361
362	✗✓	1122	if (!s->time_base.num)
363			s->time_base = (AVRational){1, s->sample_rate};
364
365		1122	av_log(ctx, AV_LOG_VERBOSE,
366			"tb:%d/%d samplefmt:%s samplerate:%d chlayout:%s\n",
367			s->time_base.num, s->time_base.den, av_get_sample_fmt_name(s->sample_fmt),
368			s->sample_rate, s->channel_layout_str);
369
370		1122	return ret;
371			}
372
373		5794	static av_cold void uninit(AVFilterContext *ctx)
374			{
375		5794	BufferSourceContext *s = ctx->priv;
376		5794	av_buffer_unref(&s->hw_frames_ctx);
377		5794	}
378
379		5794	static int query_formats(AVFilterContext *ctx)
380			{
381		5794	BufferSourceContext *c = ctx->priv;
382		5794	AVFilterChannelLayouts *channel_layouts = NULL;
383		5794	AVFilterFormats *formats = NULL;
384		5794	AVFilterFormats *samplerates = NULL;
385			int ret;
386
387	✓✓✗	5794	switch (ctx->outputs[0]->type) {
388		4672	case AVMEDIA_TYPE_VIDEO:
389	✓✗✗✓	9344	if ((ret = ff_add_format (&formats, c->pix_fmt)) < 0 \|\|
390		4672	(ret = ff_set_common_formats (ctx , formats )) < 0)
391			return ret;
392		4672	break;
393		1122	case AVMEDIA_TYPE_AUDIO:
394	✓✗✓✗	2244	if ((ret = ff_add_format (&formats , c->sample_fmt )) < 0 \|\|
395	✓✗	2244	(ret = ff_set_common_formats (ctx , formats )) < 0 \|\|
396	✗✓	2244	(ret = ff_add_format (&samplerates, c->sample_rate)) < 0 \|\|
397		1122	(ret = ff_set_common_samplerates (ctx , samplerates )) < 0)
398			return ret;
399
400	✗✓	1122	if ((ret = ff_add_channel_layout(&channel_layouts,
401	✓✓	1122	c->channel_layout ? c->channel_layout :
402		6	FF_COUNT2LAYOUT(c->channels))) < 0)
403			return ret;
404	✗✓	1122	if ((ret = ff_set_common_channel_layouts(ctx, channel_layouts)) < 0)
405			return ret;
406		1122	break;
407			default:
408			return AVERROR(EINVAL);
409			}
410
411		5794	return 0;
412			}
413
414		5794	static int config_props(AVFilterLink *link)
415			{
416		5794	BufferSourceContext *c = link->src->priv;
417
418	✓✓✗	5794	switch (link->type) {
419		4672	case AVMEDIA_TYPE_VIDEO:
420		4672	link->w = c->w;
421		4672	link->h = c->h;
422		4672	link->sample_aspect_ratio = c->pixel_aspect;
423
424	✗✓	4672	if (c->hw_frames_ctx) {
425			link->hw_frames_ctx = av_buffer_ref(c->hw_frames_ctx);
426			if (!link->hw_frames_ctx)
427			return AVERROR(ENOMEM);
428			}
429		4672	break;
430		1122	case AVMEDIA_TYPE_AUDIO:
431	✓✓	1122	if (!c->channel_layout)
432		6	c->channel_layout = link->channel_layout;
433		1122	break;
434			default:
435			return AVERROR(EINVAL);
436			}
437
438		5794	link->time_base = c->time_base;
439		5794	link->frame_rate = c->frame_rate;
440		5794	return 0;
441			}
442
443		393015	static int request_frame(AVFilterLink *link)
444			{
445		393015	BufferSourceContext *c = link->src->priv;
446
447	✗✓	393015	if (c->eof)
448			return AVERROR_EOF;
449		393015	c->nb_failed_requests++;
450		393015	return AVERROR(EAGAIN);
451			}
452
453			static const AVFilterPad avfilter_vsrc_buffer_outputs[] = {
454			{
455			.name = "default",
456			.type = AVMEDIA_TYPE_VIDEO,
457			.request_frame = request_frame,
458			.config_props = config_props,
459			},
460			{ NULL }
461			};
462
463			AVFilter ff_vsrc_buffer = {
464			.name = "buffer",
465			.description = NULL_IF_CONFIG_SMALL("Buffer video frames, and make them accessible to the filterchain."),
466			.priv_size = sizeof(BufferSourceContext),
467			.query_formats = query_formats,
468
469			.init = init_video,
470			.uninit = uninit,
471
472			.inputs = NULL,
473			.outputs = avfilter_vsrc_buffer_outputs,
474			.priv_class = &buffer_class,
475			};
476
477			static const AVFilterPad avfilter_asrc_abuffer_outputs[] = {
478			{
479			.name = "default",
480			.type = AVMEDIA_TYPE_AUDIO,
481			.request_frame = request_frame,
482			.config_props = config_props,
483			},
484			{ NULL }
485			};
486
487			AVFilter ff_asrc_abuffer = {
488			.name = "abuffer",
489			.description = NULL_IF_CONFIG_SMALL("Buffer audio frames, and make them accessible to the filterchain."),
490			.priv_size = sizeof(BufferSourceContext),
491			.query_formats = query_formats,
492
493			.init = init_audio,
494			.uninit = uninit,
495
496			.inputs = NULL,
497			.outputs = avfilter_asrc_abuffer_outputs,
498			.priv_class = &abuffer_class,
499			};