#include "internal.h"
typedef struct {
- AVFrame *cur_frame; ///< last frame delivered on the sink
+ const AVClass *class;
+ 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
+ int pixel_fmts_size;
+
+ /* only used for audio */
+ enum AVSampleFormat *sample_fmts; ///< list of accepted sample formats, terminated by AV_SAMPLE_FMT_NONE
+ int sample_fmts_size;
+ int64_t *channel_layouts; ///< list of accepted channel layouts, terminated by -1
+ int channel_layouts_size;
+ int *channel_counts; ///< list of accepted channel counts, terminated by -1
+ int channel_counts_size;
+ int all_channel_counts;
+ int *sample_rates; ///< list of accepted sample rates, terminated by -1
+ int sample_rates_size;
+
+ /* only used for compat API */
- AVAudioFifo *audio_fifo; ///< FIFO for audio samples
+ AVAudioFifo *audio_fifo; ///< FIFO for audio samples
int64_t next_pts; ///< interpolating audio pts
} BufferSinkContext;
}
return ret;
-
}
+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)
{
}
#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 attribute_align_arg 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, void *opaque)
+{
+ BufferSinkContext *buf = ctx->priv;
+ AVBufferSinkParams *params = opaque;
+ int ret;
+
+ if (params) {
+ if ((ret = av_opt_set_int_list(buf, "pix_fmts", params->pixel_fmts, AV_PIX_FMT_NONE, 0)) < 0)
+ return ret;
+ }
+
+ return common_init(ctx);
+}
+
+#define CHECK_LIST_SIZE(field) \
+ if (buf->field ## _size % sizeof(*buf->field)) { \
+ av_log(ctx, AV_LOG_ERROR, "Invalid size for " #field ": %d, " \
+ "should be multiple of %d\n", \
+ buf->field ## _size, (int)sizeof(*buf->field)); \
+ return AVERROR(EINVAL); \
+ }
+static int vsink_query_formats(AVFilterContext *ctx)
+{
+ BufferSinkContext *buf = ctx->priv;
+ AVFilterFormats *formats = NULL;
+ unsigned i;
+ int ret;
+
+ CHECK_LIST_SIZE(pixel_fmts)
+ if (buf->pixel_fmts_size) {
+ for (i = 0; i < NB_ITEMS(buf->pixel_fmts); i++)
+ if ((ret = ff_add_format(&formats, buf->pixel_fmts[i])) < 0) {
+ ff_formats_unref(&formats);
+ return ret;
+ }
+ ff_set_common_formats(ctx, formats);
+ } else {
+ ff_default_query_formats(ctx);
+ }
+
+ return 0;
+}
+
+static av_cold int asink_init(AVFilterContext *ctx, void *opaque)
+{
+ BufferSinkContext *buf = ctx->priv;
+ AVABufferSinkParams *params = opaque;
+ int ret;
+
+ if (params) {
+ if ((ret = av_opt_set_int_list(buf, "sample_fmts", params->sample_fmts, AV_SAMPLE_FMT_NONE, 0)) < 0 ||
+ (ret = av_opt_set_int_list(buf, "sample_rates", params->sample_rates, -1, 0)) < 0 ||
+ (ret = av_opt_set_int_list(buf, "channel_layouts", params->channel_layouts, -1, 0)) < 0 ||
+ (ret = av_opt_set_int_list(buf, "channel_counts", params->channel_counts, -1, 0)) < 0 ||
+ (ret = av_opt_set_int(buf, "all_channel_counts", params->all_channel_counts, 0)) < 0)
+ return ret;
+ }
+ return common_init(ctx);
+}
+
+static int asink_query_formats(AVFilterContext *ctx)
+{
+ BufferSinkContext *buf = ctx->priv;
+ AVFilterFormats *formats = NULL;
+ AVFilterChannelLayouts *layouts = NULL;
+ unsigned i;
+ int ret;
+
+ CHECK_LIST_SIZE(sample_fmts)
+ CHECK_LIST_SIZE(sample_rates)
+ CHECK_LIST_SIZE(channel_layouts)
+ CHECK_LIST_SIZE(channel_counts)
+
+ if (buf->sample_fmts_size) {
+ for (i = 0; i < NB_ITEMS(buf->sample_fmts); i++)
+ if ((ret = ff_add_format(&formats, buf->sample_fmts[i])) < 0) {
+ ff_formats_unref(&formats);
+ return ret;
+ }
+ ff_set_common_formats(ctx, formats);
+ }
+
+ if (buf->channel_layouts_size || buf->channel_counts_size ||
+ buf->all_channel_counts) {
+ for (i = 0; i < NB_ITEMS(buf->channel_layouts); i++)
+ if ((ret = ff_add_channel_layout(&layouts, buf->channel_layouts[i])) < 0) {
+ ff_channel_layouts_unref(&layouts);
+ return ret;
+ }
+ for (i = 0; i < NB_ITEMS(buf->channel_counts); i++)
+ if ((ret = ff_add_channel_layout(&layouts, FF_COUNT2LAYOUT(buf->channel_counts[i]))) < 0) {
+ ff_channel_layouts_unref(&layouts);
+ return ret;
+ }
+ if (buf->all_channel_counts) {
+ if (layouts)
+ av_log(ctx, AV_LOG_WARNING,
+ "Conflicting all_channel_counts and list in options\n");
+ else if (!(layouts = ff_all_channel_counts()))
+ return AVERROR(ENOMEM);
+ }
+ ff_set_common_channel_layouts(ctx, layouts);
+ }
+
+ if (buf->sample_rates_size) {
+ formats = NULL;
+ for (i = 0; i < NB_ITEMS(buf->sample_rates); i++)
+ if ((ret = ff_add_format(&formats, buf->sample_rates[i])) < 0) {
+ ff_formats_unref(&formats);
+ return ret;
+ }
+ ff_set_common_samplerates(ctx, formats);
+ }
+
+ return 0;
+}
+
+#define OFFSET(x) offsetof(BufferSinkContext, x)
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
+static const AVOption buffersink_options[] = {
+ { "pix_fmts", "set the supported pixel formats", OFFSET(pixel_fmts), AV_OPT_TYPE_BINARY, .flags = FLAGS },
+ { NULL },
+};
+#undef FLAGS
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
+static const AVOption abuffersink_options[] = {
+ { "sample_fmts", "set the supported sample formats", OFFSET(sample_fmts), AV_OPT_TYPE_BINARY, .flags = FLAGS },
+ { "sample_rates", "set the supported sample rates", OFFSET(sample_rates), AV_OPT_TYPE_BINARY, .flags = FLAGS },
+ { "channel_layouts", "set the supported channel layouts", OFFSET(channel_layouts), AV_OPT_TYPE_BINARY, .flags = FLAGS },
+ { "channel_counts", "set the supported channel counts", OFFSET(channel_counts), AV_OPT_TYPE_BINARY, .flags = FLAGS },
+ { "all_channel_counts", "accept all channel counts", OFFSET(all_channel_counts), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, FLAGS },
+ { NULL },
+};
+#undef FLAGS
+
+AVFILTER_DEFINE_CLASS(buffersink);
+AVFILTER_DEFINE_CLASS(abuffersink);
+
+#if FF_API_AVFILTERBUFFER
+
+#define ffbuffersink_options buffersink_options
+#define ffabuffersink_options abuffersink_options
+AVFILTER_DEFINE_CLASS(ffbuffersink);
+AVFILTER_DEFINE_CLASS(ffabuffersink);
+
+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),
+ .priv_class = &ffbuffersink_class,
+ .init_opaque = vsink_init,
+ .uninit = uninit,
+
+ .query_formats = vsink_query_formats,
+ .inputs = ffbuffersink_inputs,
+ .outputs = NULL,
+};
+
+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),
+ .priv_class = &ffabuffersink_class,
+ .query_formats = asink_query_formats,
+ .inputs = ffabuffersink_inputs,
+ .outputs = NULL,
+};
+#endif /* FF_API_AVFILTERBUFFER */
+
static const AVFilterPad avfilter_vsink_buffer_inputs[] = {
{
- .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
.filter_frame = filter_frame,
- .needs_fifo = 1
},
{ NULL }
};
AVFilter avfilter_vsink_buffer = {
- .name = "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),
- .priv_class = &buffersink_class,
+ .priv_size = sizeof(BufferSinkContext),
++ .priv_class = &buffersink_class,
+ .init_opaque = vsink_init,
- .uninit = uninit,
+ .uninit = uninit,
- .inputs = avfilter_vsink_buffer_inputs,
- .outputs = NULL,
+ .query_formats = vsink_query_formats,
+ .inputs = avfilter_vsink_buffer_inputs,
+ .outputs = NULL,
};
static const AVFilterPad avfilter_asink_abuffer_inputs[] = {
{
- .name = "default",
- .type = AVMEDIA_TYPE_AUDIO,
- .filter_frame = filter_frame,
+ .name = "default",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .filter_frame = filter_frame,
- .needs_fifo = 1
},
{ NULL }
};
AVFilter avfilter_asink_abuffer = {
- .name = "abuffersink",
+ .name = "abuffersink",
.description = NULL_IF_CONFIG_SMALL("Buffer audio frames, and make them available to the end of the filter graph."),
- .priv_class = &abuffersink_class,
- .priv_size = sizeof(BufferSinkContext),
++ .priv_class = &abuffersink_class,
+ .priv_size = sizeof(BufferSinkContext),
+ .init_opaque = asink_init,
- .uninit = uninit,
+ .uninit = uninit,
- .inputs = avfilter_asink_abuffer_inputs,
- .outputs = NULL,
+ .query_formats = asink_query_formats,
+ .inputs = avfilter_asink_abuffer_inputs,
+ .outputs = NULL,
};
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