#include "avfilter.h"
#include "internal.h"
+#include "audio.h"
#include "avcodec.h"
#include "buffersrc.h"
#include "vsrc_buffer.h"
int sample_rate;
unsigned int sample_format;
int64_t channel_layout;
- int packing_format;
// Normalization filters
AVFilterContext *aconvert;
AVFilterContext *aresample;
} BufferSourceContext;
-#define FIFO_SIZE 8
-
-#define CHECK_PARAM_CHANGE(s, c, width, height, format)\
- if (c->w != width || c->h != height || c->pix_fmt != format) {\
- av_log(s, AV_LOG_ERROR, "Changing frame properties on the fly is not supported.\n");\
- return AVERROR(EINVAL);\
- }
-
static void buf_free(AVFilterBuffer *ptr)
{
av_free(ptr);
return;
}
-static void set_link_source(AVFilterContext *src, AVFilterLink *link)
-{
- link->src = src;
- link->srcpad = &(src->output_pads[0]);
- src->outputs[0] = link;
-}
-
-static int reconfigure_filter(BufferSourceContext *abuffer, AVFilterContext *filt_ctx)
-{
- int ret;
- AVFilterLink * const inlink = filt_ctx->inputs[0];
- AVFilterLink * const outlink = filt_ctx->outputs[0];
-
- inlink->format = abuffer->sample_format;
- inlink->channel_layout = abuffer->channel_layout;
- inlink->planar = abuffer->packing_format;
- inlink->sample_rate = abuffer->sample_rate;
-
- filt_ctx->filter->uninit(filt_ctx);
- memset(filt_ctx->priv, 0, filt_ctx->filter->priv_size);
- if ((ret = filt_ctx->filter->init(filt_ctx, NULL , NULL)) < 0)
- return ret;
- if ((ret = inlink->srcpad->config_props(inlink)) < 0)
- return ret;
- return outlink->srcpad->config_props(outlink);
-}
-
-static int insert_filter(BufferSourceContext *abuffer,
- AVFilterLink *link, AVFilterContext **filt_ctx,
- const char *filt_name)
-{
- int ret;
-
- if ((ret = avfilter_open(filt_ctx, avfilter_get_by_name(filt_name), NULL)) < 0)
- return ret;
-
- link->src->outputs[0] = NULL;
- if ((ret = avfilter_link(link->src, 0, *filt_ctx, 0)) < 0) {
- link->src->outputs[0] = link;
- return ret;
- }
-
- set_link_source(*filt_ctx, link);
-
- if ((ret = reconfigure_filter(abuffer, *filt_ctx)) < 0) {
- avfilter_free(*filt_ctx);
- return ret;
- }
-
- return 0;
-}
-
-static void remove_filter(AVFilterContext **filt_ctx)
-{
- AVFilterLink *outlink = (*filt_ctx)->outputs[0];
- AVFilterContext *src = (*filt_ctx)->inputs[0]->src;
-
- (*filt_ctx)->outputs[0] = NULL;
- avfilter_free(*filt_ctx);
- *filt_ctx = NULL;
-
- set_link_source(src, outlink);
-}
-
-static inline void log_input_change(void *ctx, AVFilterLink *link, AVFilterBufferRef *ref)
-{
- char old_layout_str[16], new_layout_str[16];
- av_get_channel_layout_string(old_layout_str, sizeof(old_layout_str),
- -1, link->channel_layout);
- av_get_channel_layout_string(new_layout_str, sizeof(new_layout_str),
- -1, ref->audio->channel_layout);
- av_log(ctx, AV_LOG_INFO,
- "Audio input format changed: "
- "%s:%s:%d -> %s:%s:%d, normalizing\n",
- av_get_sample_fmt_name(link->format),
- old_layout_str, (int)link->sample_rate,
- av_get_sample_fmt_name(ref->format),
- new_layout_str, ref->audio->sample_rate);
-}
-
-static int check_format_change_video(AVFilterContext *buffer_filter,
- AVFilterBufferRef *picref)
-{
- BufferSourceContext *c = buffer_filter->priv;
- int ret;
-
- if (picref->video->w != c->w || picref->video->h != c->h || picref->format != c->pix_fmt) {
- AVFilterContext *scale = buffer_filter->outputs[0]->dst;
- AVFilterLink *link;
- char scale_param[1024];
-
- av_log(buffer_filter, AV_LOG_INFO,
- "Buffer video input changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
- c->w, c->h, av_pix_fmt_descriptors[c->pix_fmt].name,
- picref->video->w, picref->video->h, av_pix_fmt_descriptors[picref->format].name);
-
- if (!scale || strcmp(scale->filter->name, "scale")) {
- AVFilter *f = avfilter_get_by_name("scale");
-
- av_log(buffer_filter, AV_LOG_INFO, "Inserting scaler filter\n");
- if ((ret = avfilter_open(&scale, f, "Input equalizer")) < 0)
- return ret;
-
- c->scale = scale;
-
- snprintf(scale_param, sizeof(scale_param)-1, "%d:%d:%s", c->w, c->h, c->sws_param);
- if ((ret = avfilter_init_filter(scale, scale_param, NULL)) < 0) {
- return ret;
- }
-
- if ((ret = avfilter_insert_filter(buffer_filter->outputs[0], scale, 0, 0)) < 0) {
- return ret;
- }
- scale->outputs[0]->time_base = scale->inputs[0]->time_base;
-
- scale->outputs[0]->format= c->pix_fmt;
- } else if (!strcmp(scale->filter->name, "scale")) {
- snprintf(scale_param, sizeof(scale_param)-1, "%d:%d:%s",
- scale->outputs[0]->w, scale->outputs[0]->h, c->sws_param);
- scale->filter->init(scale, scale_param, NULL);
- }
-
- c->pix_fmt = scale->inputs[0]->format = picref->format;
- c->w = scale->inputs[0]->w = picref->video->w;
- c->h = scale->inputs[0]->h = picref->video->h;
-
- link = scale->outputs[0];
- if ((ret = link->srcpad->config_props(link)) < 0)
- return ret;
- }
- return 0;
-}
-
-static int check_format_change_audio(AVFilterContext *ctx,
- AVFilterBufferRef *samplesref)
-{
- BufferSourceContext *abuffer = ctx->priv;
- AVFilterLink *link;
- int ret, logged = 0;
-
- link = ctx->outputs[0];
- if (samplesref->audio->sample_rate != link->sample_rate) {
-
- log_input_change(ctx, link, samplesref);
- logged = 1;
-
- abuffer->sample_rate = samplesref->audio->sample_rate;
-
- if (!abuffer->aresample) {
- ret = insert_filter(abuffer, link, &abuffer->aresample, "aresample");
- if (ret < 0) return ret;
- } else {
- link = abuffer->aresample->outputs[0];
- if (samplesref->audio->sample_rate == link->sample_rate)
- remove_filter(&abuffer->aresample);
- else
- if ((ret = reconfigure_filter(abuffer, abuffer->aresample)) < 0)
- return ret;
- }
- }
-
- link = ctx->outputs[0];
- if (samplesref->format != link->format ||
- samplesref->audio->channel_layout != link->channel_layout ||
- samplesref->audio->planar != link->planar) {
-
- if (!logged) log_input_change(ctx, link, samplesref);
-
- abuffer->sample_format = samplesref->format;
- abuffer->channel_layout = samplesref->audio->channel_layout;
- abuffer->packing_format = samplesref->audio->planar;
-
- if (!abuffer->aconvert) {
- ret = insert_filter(abuffer, link, &abuffer->aconvert, "aconvert");
- if (ret < 0) return ret;
- } else {
- link = abuffer->aconvert->outputs[0];
- if (samplesref->format == link->format &&
- samplesref->audio->channel_layout == link->channel_layout &&
- samplesref->audio->planar == link->planar
- )
- remove_filter(&abuffer->aconvert);
- else
- if ((ret = reconfigure_filter(abuffer, abuffer->aconvert)) < 0)
- return ret;
- }
- }
-
- return 0;
-}
-
-static int check_format_change(AVFilterContext *buffer_filter,
- AVFilterBufferRef *picref)
-{
- switch (buffer_filter->outputs[0]->type) {
- case AVMEDIA_TYPE_VIDEO:
- return check_format_change_video(buffer_filter, picref);
- case AVMEDIA_TYPE_AUDIO:
- return check_format_change_audio(buffer_filter, picref);
- default:
- return AVERROR(ENOSYS);
- }
-}
-
-static AVFilterBufferRef *copy_buffer_ref(AVFilterContext *ctx,
- AVFilterBufferRef *ref)
-{
- AVFilterLink *outlink = ctx->outputs[0];
- AVFilterBufferRef *buf;
- int channels, data_size, i;
-
- switch (outlink->type) {
-
- case AVMEDIA_TYPE_VIDEO:
- buf = avfilter_get_video_buffer(outlink, AV_PERM_WRITE,
- ref->video->w, ref->video->h);
- av_image_copy(buf->data, buf->linesize,
- (void*)ref->data, ref->linesize,
- ref->format, ref->video->w, ref->video->h);
- break;
-
- case AVMEDIA_TYPE_AUDIO:
- buf = avfilter_get_audio_buffer(outlink, AV_PERM_WRITE,
- ref->audio->nb_samples);
- channels = av_get_channel_layout_nb_channels(ref->audio->channel_layout);
- data_size = av_samples_get_buffer_size(NULL, channels,
- ref->audio->nb_samples,
- ref->format, 1);
- for (i = 0; i < FF_ARRAY_ELEMS(ref->buf->data) && ref->buf->data[i]; i++)
- memcpy(buf->buf->data[i], ref->buf->data[i], data_size);
- break;
-
- default:
- return NULL;
- }
- avfilter_copy_buffer_ref_props(buf, ref);
- return buf;
-}
-
-int av_buffersrc_add_ref(AVFilterContext *buffer_filter,
- AVFilterBufferRef *picref, int flags)
-{
- BufferSourceContext *c = buffer_filter->priv;
- AVFilterBufferRef *buf;
- int ret;
-
- if (!picref) {
- c->eof = 1;
- return 0;
- } else if (c->eof)
- return AVERROR(EINVAL);
-
- if (!av_fifo_space(c->fifo) &&
- (ret = av_fifo_realloc2(c->fifo, av_fifo_size(c->fifo) +
- sizeof(buf))) < 0)
- return ret;
-
- if (!(flags & AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT)) {
- ret = check_format_change(buffer_filter, picref);
- if (ret < 0)
- return ret;
- }
- if (flags & AV_BUFFERSRC_FLAG_NO_COPY)
- buf = picref;
- else
- buf = copy_buffer_ref(buffer_filter, picref);
-
- if ((ret = av_fifo_generic_write(c->fifo, &buf, sizeof(buf), NULL)) < 0) {
- if (buf != picref)
- avfilter_unref_buffer(buf);
- return ret;
- }
- c->nb_failed_requests = 0;
-
- return 0;
-}
-
int av_vsrc_buffer_add_video_buffer_ref(AVFilterContext *buffer_filter,
AVFilterBufferRef *picref, int flags)
{
#if CONFIG_AVCODEC
#include "avcodec.h"
-int av_buffersrc_add_frame(AVFilterContext *buffer_src,
- const AVFrame *frame, int flags)
-{
- AVFilterBufferRef *picref;
- int ret;
-
- if (!frame) /* NULL for EOF */
- return av_buffersrc_add_ref(buffer_src, NULL, flags);
-
- switch (buffer_src->outputs[0]->type) {
- case AVMEDIA_TYPE_VIDEO:
- picref = avfilter_get_video_buffer_ref_from_frame(frame, AV_PERM_WRITE);
- break;
- case AVMEDIA_TYPE_AUDIO:
- picref = avfilter_get_audio_buffer_ref_from_frame(frame, AV_PERM_WRITE);
- break;
- default:
- return AVERROR(ENOSYS);
- }
- if (!picref)
- return AVERROR(ENOMEM);
- ret = av_buffersrc_add_ref(buffer_src, picref, flags);
- picref->buf->data[0] = NULL;
- avfilter_unref_buffer(picref);
- return ret;
-}
-
int av_vsrc_buffer_add_frame(AVFilterContext *buffer_src,
const AVFrame *frame, int flags)
{
}
#endif
-unsigned av_buffersrc_get_nb_failed_requests(AVFilterContext *buffer_src)
-{
- return ((BufferSourceContext *)buffer_src->priv)->nb_failed_requests;
-}
-
unsigned av_vsrc_buffer_get_nb_failed_requests(AVFilterContext *buffer_src)
{
return ((BufferSourceContext *)buffer_src->priv)->nb_failed_requests;
}
-static av_cold int init_video(AVFilterContext *ctx, const char *args, void *opaque)
-{
- BufferSourceContext *c = ctx->priv;
- char pix_fmt_str[128];
- int ret, n = 0;
- *c->sws_param = 0;
-
- if (!args ||
- (n = sscanf(args, "%d:%d:%127[^:]:%d:%d:%d:%d:%255c", &c->w, &c->h, pix_fmt_str,
- &c->time_base.num, &c->time_base.den,
- &c->sample_aspect_ratio.num, &c->sample_aspect_ratio.den, c->sws_param)) < 7) {
- av_log(ctx, AV_LOG_ERROR, "Expected at least 7 arguments, but only %d found in '%s'\n", n, args);
- return AVERROR(EINVAL);
- }
-
- if ((ret = ff_parse_pixel_format(&c->pix_fmt, pix_fmt_str, ctx)) < 0)
- return ret;
-
- if (!(c->fifo = av_fifo_alloc(sizeof(AVFilterBufferRef*))))
- return AVERROR(ENOMEM);
-
- av_log(ctx, AV_LOG_INFO, "w:%d h:%d pixfmt:%s tb:%d/%d sar:%d/%d sws_param:%s\n",
- c->w, c->h, av_pix_fmt_descriptors[c->pix_fmt].name,
- c->time_base.num, c->time_base.den,
- c->sample_aspect_ratio.num, c->sample_aspect_ratio.den, c->sws_param);
- return 0;
-}
-
-static av_cold int init_audio(AVFilterContext *ctx, const char *args0, void *opaque)
-{
- BufferSourceContext *abuffer = ctx->priv;
- char *arg = NULL, *ptr, chlayout_str[16];
- char *args = av_strdup(args0);
- int ret;
-
- arg = av_strtok(args, ":", &ptr);
-
-#define ADD_FORMAT(fmt_name) \
- if (!arg) \
- goto arg_fail; \
- if ((ret = ff_parse_##fmt_name(&abuffer->fmt_name, arg, ctx)) < 0) { \
- av_freep(&args); \
- return ret; \
- } \
- if (*args) \
- arg = av_strtok(NULL, ":", &ptr)
-
- ADD_FORMAT(sample_rate);
- ADD_FORMAT(sample_format);
- ADD_FORMAT(channel_layout);
- ADD_FORMAT(packing_format);
-
- abuffer->fifo = av_fifo_alloc(FIFO_SIZE*sizeof(AVFilterBufferRef*));
- if (!abuffer->fifo) {
- av_log(ctx, AV_LOG_ERROR, "Failed to allocate fifo, filter init failed.\n");
- return AVERROR(ENOMEM);
- }
-
- av_get_channel_layout_string(chlayout_str, sizeof(chlayout_str),
- -1, abuffer->channel_layout);
- av_log(ctx, AV_LOG_INFO, "format:%s layout:%s rate:%d\n",
- av_get_sample_fmt_name(abuffer->sample_format), chlayout_str,
- abuffer->sample_rate);
- av_freep(&args);
-
- return 0;
-
-arg_fail:
- av_log(ctx, AV_LOG_ERROR, "Invalid arguments, must be of the form "
- "sample_rate:sample_fmt:channel_layout:packing\n");
- av_freep(&args);
- return AVERROR(EINVAL);
-}
-
-static av_cold void uninit(AVFilterContext *ctx)
-{
- BufferSourceContext *s = ctx->priv;
- while (s->fifo && av_fifo_size(s->fifo)) {
- AVFilterBufferRef *buf;
- av_fifo_generic_read(s->fifo, &buf, sizeof(buf), NULL);
- avfilter_unref_buffer(buf);
- }
- av_fifo_free(s->fifo);
- s->fifo = NULL;
- avfilter_free(s->scale);
- s->scale = NULL;
-}
-
-static int query_formats_video(AVFilterContext *ctx)
-{
- BufferSourceContext *c = ctx->priv;
- enum PixelFormat pix_fmts[] = { c->pix_fmt, PIX_FMT_NONE };
-
- avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
- return 0;
-}
-
-static int query_formats_audio(AVFilterContext *ctx)
-{
- BufferSourceContext *abuffer = ctx->priv;
- AVFilterFormats *formats;
-
- formats = NULL;
- avfilter_add_format(&formats, abuffer->sample_format);
- avfilter_set_common_sample_formats(ctx, formats);
-
- formats = NULL;
- avfilter_add_format(&formats, abuffer->channel_layout);
- avfilter_set_common_channel_layouts(ctx, formats);
-
- formats = NULL;
- avfilter_add_format(&formats, abuffer->packing_format);
- avfilter_set_common_packing_formats(ctx, formats);
-
- return 0;
-}
-
-static int config_output_video(AVFilterLink *link)
-{
- BufferSourceContext *c = link->src->priv;
-
- link->w = c->w;
- link->h = c->h;
- link->sample_aspect_ratio = c->sample_aspect_ratio;
- link->time_base = c->time_base;
-
- return 0;
-}
-
-static int config_output_audio(AVFilterLink *outlink)
-{
- BufferSourceContext *abuffer = outlink->src->priv;
- outlink->sample_rate = abuffer->sample_rate;
- return 0;
-}
-
-static int request_frame(AVFilterLink *link)
-{
- BufferSourceContext *c = link->src->priv;
- AVFilterBufferRef *buf;
-
- if (!av_fifo_size(c->fifo)) {
- if (c->eof)
- return AVERROR_EOF;
- c->nb_failed_requests++;
- return AVERROR(EAGAIN);
- }
- av_fifo_generic_read(c->fifo, &buf, sizeof(buf), NULL);
-
- switch (link->type) {
- case AVMEDIA_TYPE_VIDEO:
- avfilter_start_frame(link, avfilter_ref_buffer(buf, ~0));
- avfilter_draw_slice(link, 0, link->h, 1);
- avfilter_end_frame(link);
- avfilter_unref_buffer(buf);
- break;
- case AVMEDIA_TYPE_AUDIO:
- avfilter_filter_samples(link, avfilter_ref_buffer(buf, ~0));
- avfilter_unref_buffer(buf);
- break;
- default:
- return AVERROR(ENOSYS);
- }
- return 0;
-}
-
-static int poll_frame(AVFilterLink *link)
-{
- BufferSourceContext *c = link->src->priv;
- int size = av_fifo_size(c->fifo);
- if (!size && c->eof)
- return AVERROR_EOF;
- return size/sizeof(AVFilterBufferRef*);
-}
-
int av_asrc_buffer_add_audio_buffer_ref(AVFilterContext *ctx,
AVFilterBufferRef *samplesref,
int av_unused flags)
AVFilterBufferRef *samplesref;
samplesref = avfilter_get_audio_buffer_ref_from_arrays(
- data, linesize, AV_PERM_WRITE,
+ data, linesize[0], AV_PERM_WRITE,
nb_samples,
- sample_fmt, channel_layout, planar);
+ sample_fmt, channel_layout);
if (!samplesref)
return AVERROR(ENOMEM);
pts, flags);
)
}
-
-AVFilter avfilter_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_video,
-
- .init = init_video,
- .uninit = uninit,
-
- .inputs = (const AVFilterPad[]) {{ .name = NULL }},
- .outputs = (const AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .request_frame = request_frame,
- .poll_frame = poll_frame,
- .config_props = config_output_video, },
- { .name = NULL}},
-};
-
-#ifdef CONFIG_ABUFFER_FILTER
-
-AVFilter avfilter_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_audio,
-
- .init = init_audio,
- .uninit = uninit,
-
- .inputs = (const AVFilterPad[]) {{ .name = NULL }},
- .outputs = (const AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_AUDIO,
- .request_frame = request_frame,
- .poll_frame = poll_frame,
- .config_props = config_output_audio, },
- { .name = NULL}},
-};
-
-#endif
projects / ffmpeg / blobdiff