mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
lavfi: merge all filtering code into ff_filter_frame.
This commit is contained in:
Nicolas George
parent
765158dd82
commit
82541d8330
@ -179,114 +179,3 @@ AVFilterBufferRef* avfilter_get_audio_buffer_ref_from_arrays(uint8_t **data,
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nb_samples, sample_fmt,
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channels, channel_layout);
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}
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static int default_filter_frame(AVFilterLink *link, AVFilterBufferRef *frame)
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{
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return ff_filter_frame(link->dst->outputs[0], frame);
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}
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int ff_filter_samples_framed(AVFilterLink *link, AVFilterBufferRef *samplesref)
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{
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int (*filter_frame)(AVFilterLink *, AVFilterBufferRef *);
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AVFilterPad *src = link->srcpad;
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AVFilterPad *dst = link->dstpad;
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int64_t pts;
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AVFilterBufferRef *buf_out;
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int ret;
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FF_TPRINTF_START(NULL, filter_frame); ff_tlog_link(NULL, link, 1);
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if (link->closed) {
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avfilter_unref_buffer(samplesref);
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return AVERROR_EOF;
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}
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if (!(filter_frame = dst->filter_frame))
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filter_frame = default_filter_frame;
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av_assert1((samplesref->perms & src->min_perms) == src->min_perms);
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samplesref->perms &= ~ src->rej_perms;
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/* prepare to copy the samples if the buffer has insufficient permissions */
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if ((dst->min_perms & samplesref->perms) != dst->min_perms ||
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dst->rej_perms & samplesref->perms) {
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av_log(link->dst, AV_LOG_DEBUG,
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"Copying audio data in avfilter (have perms %x, need %x, reject %x)\n",
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samplesref->perms, link->dstpad->min_perms, link->dstpad->rej_perms);
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buf_out = ff_default_get_audio_buffer(link, dst->min_perms,
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samplesref->audio->nb_samples);
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if (!buf_out) {
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avfilter_unref_buffer(samplesref);
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return AVERROR(ENOMEM);
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}
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buf_out->pts = samplesref->pts;
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buf_out->audio->sample_rate = samplesref->audio->sample_rate;
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/* Copy actual data into new samples buffer */
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av_samples_copy(buf_out->extended_data, samplesref->extended_data,
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0, 0, samplesref->audio->nb_samples,
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av_get_channel_layout_nb_channels(link->channel_layout),
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link->format);
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avfilter_unref_buffer(samplesref);
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} else
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buf_out = samplesref;
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link->cur_buf = buf_out;
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pts = buf_out->pts;
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ret = filter_frame(link, buf_out);
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ff_update_link_current_pts(link, pts);
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return ret;
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}
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int ff_filter_samples(AVFilterLink *link, AVFilterBufferRef *samplesref)
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{
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int insamples = samplesref->audio->nb_samples, inpos = 0, nb_samples;
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AVFilterBufferRef *pbuf = link->partial_buf;
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int nb_channels = av_get_channel_layout_nb_channels(link->channel_layout);
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int ret = 0;
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av_assert1(samplesref->format == link->format);
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av_assert1(samplesref->audio->channels == link->channels);
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av_assert1(samplesref->audio->channel_layout == link->channel_layout);
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av_assert1(samplesref->audio->sample_rate == link->sample_rate);
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if (!link->min_samples ||
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(!pbuf &&
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insamples >= link->min_samples && insamples <= link->max_samples)) {
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return ff_filter_samples_framed(link, samplesref);
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}
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/* Handle framing (min_samples, max_samples) */
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while (insamples) {
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if (!pbuf) {
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AVRational samples_tb = { 1, link->sample_rate };
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int perms = link->dstpad->min_perms | AV_PERM_WRITE;
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pbuf = ff_get_audio_buffer(link, perms, link->partial_buf_size);
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if (!pbuf) {
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av_log(link->dst, AV_LOG_WARNING,
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"Samples dropped due to memory allocation failure.\n");
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return 0;
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}
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avfilter_copy_buffer_ref_props(pbuf, samplesref);
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pbuf->pts = samplesref->pts +
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av_rescale_q(inpos, samples_tb, link->time_base);
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pbuf->audio->nb_samples = 0;
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}
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nb_samples = FFMIN(insamples,
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link->partial_buf_size - pbuf->audio->nb_samples);
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av_samples_copy(pbuf->extended_data, samplesref->extended_data,
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pbuf->audio->nb_samples, inpos,
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nb_samples, nb_channels, link->format);
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inpos += nb_samples;
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insamples -= nb_samples;
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pbuf->audio->nb_samples += nb_samples;
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if (pbuf->audio->nb_samples >= link->min_samples) {
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ret = ff_filter_samples_framed(link, pbuf);
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pbuf = NULL;
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}
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}
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avfilter_unref_buffer(samplesref);
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link->partial_buf = pbuf;
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return ret;
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}
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@ -34,6 +34,8 @@
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#include "internal.h"
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#include "audio.h"
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static int ff_filter_frame_framed(AVFilterLink *link, AVFilterBufferRef *frame);
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char *ff_get_ref_perms_string(char *buf, size_t buf_size, int perms)
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{
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snprintf(buf, buf_size, "%s%s%s%s%s%s",
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@ -342,7 +344,7 @@ int ff_request_frame(AVFilterLink *link)
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if (ret == AVERROR_EOF && link->partial_buf) {
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AVFilterBufferRef *pbuf = link->partial_buf;
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link->partial_buf = NULL;
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ff_filter_samples_framed(link, pbuf);
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ff_filter_frame_framed(link, pbuf);
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return 0;
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}
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if (ret == AVERROR_EOF)
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@ -631,22 +633,161 @@ enum AVMediaType avfilter_pad_get_type(AVFilterPad *pads, int pad_idx)
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return pads[pad_idx].type;
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}
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static int default_filter_frame(AVFilterLink *link, AVFilterBufferRef *frame)
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{
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return ff_filter_frame(link->dst->outputs[0], frame);
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}
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static int ff_filter_frame_framed(AVFilterLink *link, AVFilterBufferRef *frame)
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{
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int (*filter_frame)(AVFilterLink *, AVFilterBufferRef *);
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AVFilterPad *src = link->srcpad;
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AVFilterPad *dst = link->dstpad;
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AVFilterBufferRef *out;
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int perms, ret;
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AVFilterCommand *cmd= link->dst->command_queue;
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int64_t pts;
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if (link->closed) {
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avfilter_unref_buffer(frame);
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return AVERROR_EOF;
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}
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if (!(filter_frame = dst->filter_frame))
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filter_frame = default_filter_frame;
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av_assert1((frame->perms & src->min_perms) == src->min_perms);
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frame->perms &= ~ src->rej_perms;
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perms = frame->perms;
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if (frame->linesize[0] < 0)
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perms |= AV_PERM_NEG_LINESIZES;
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/* prepare to copy the frame if the buffer has insufficient permissions */
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if ((dst->min_perms & perms) != dst->min_perms ||
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dst->rej_perms & perms) {
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av_log(link->dst, AV_LOG_DEBUG,
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"Copying data in avfilter (have perms %x, need %x, reject %x)\n",
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perms, link->dstpad->min_perms, link->dstpad->rej_perms);
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/* Maybe use ff_copy_buffer_ref instead? */
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switch (link->type) {
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case AVMEDIA_TYPE_VIDEO:
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out = ff_get_video_buffer(link, dst->min_perms,
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link->w, link->h);
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break;
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case AVMEDIA_TYPE_AUDIO:
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out = ff_get_audio_buffer(link, dst->min_perms,
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frame->audio->nb_samples);
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break;
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default: return AVERROR(EINVAL);
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}
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if (!out) {
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avfilter_unref_buffer(frame);
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return AVERROR(ENOMEM);
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}
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avfilter_copy_buffer_ref_props(out, frame);
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switch (link->type) {
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case AVMEDIA_TYPE_VIDEO:
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av_image_copy(out->data, out->linesize, frame->data, frame->linesize,
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frame->format, frame->video->w, frame->video->h);
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break;
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case AVMEDIA_TYPE_AUDIO:
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av_samples_copy(out->extended_data, frame->extended_data,
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0, 0, frame->audio->nb_samples,
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av_get_channel_layout_nb_channels(frame->audio->channel_layout),
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frame->format);
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break;
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default: return AVERROR(EINVAL);
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}
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avfilter_unref_buffer(frame);
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} else
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out = frame;
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while(cmd && cmd->time <= frame->pts * av_q2d(link->time_base)){
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av_log(link->dst, AV_LOG_DEBUG,
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"Processing command time:%f command:%s arg:%s\n",
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cmd->time, cmd->command, cmd->arg);
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avfilter_process_command(link->dst, cmd->command, cmd->arg, 0, 0, cmd->flags);
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ff_command_queue_pop(link->dst);
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cmd= link->dst->command_queue;
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}
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pts = out->pts;
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ret = filter_frame(link, out);
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ff_update_link_current_pts(link, pts);
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return ret;
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}
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static int ff_filter_frame_needs_framing(AVFilterLink *link, AVFilterBufferRef *frame)
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{
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int insamples = frame->audio->nb_samples, inpos = 0, nb_samples;
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AVFilterBufferRef *pbuf = link->partial_buf;
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int nb_channels = frame->audio->channels;
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int ret = 0;
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/* Handle framing (min_samples, max_samples) */
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while (insamples) {
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if (!pbuf) {
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AVRational samples_tb = { 1, link->sample_rate };
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int perms = link->dstpad->min_perms | AV_PERM_WRITE;
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pbuf = ff_get_audio_buffer(link, perms, link->partial_buf_size);
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if (!pbuf) {
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av_log(link->dst, AV_LOG_WARNING,
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"Samples dropped due to memory allocation failure.\n");
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return 0;
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}
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avfilter_copy_buffer_ref_props(pbuf, frame);
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pbuf->pts = frame->pts +
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av_rescale_q(inpos, samples_tb, link->time_base);
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pbuf->audio->nb_samples = 0;
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}
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nb_samples = FFMIN(insamples,
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link->partial_buf_size - pbuf->audio->nb_samples);
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av_samples_copy(pbuf->extended_data, frame->extended_data,
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pbuf->audio->nb_samples, inpos,
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nb_samples, nb_channels, link->format);
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inpos += nb_samples;
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insamples -= nb_samples;
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pbuf->audio->nb_samples += nb_samples;
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if (pbuf->audio->nb_samples >= link->min_samples) {
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ret = ff_filter_frame_framed(link, pbuf);
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pbuf = NULL;
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}
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}
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avfilter_unref_buffer(frame);
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link->partial_buf = pbuf;
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return ret;
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}
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int ff_filter_frame(AVFilterLink *link, AVFilterBufferRef *frame)
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{
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int ret;
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FF_TPRINTF_START(NULL, filter_frame); ff_tlog_link(NULL, link, 1); ff_tlog(NULL, " "); ff_tlog_ref(NULL, frame, 1);
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switch (link->type) {
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case AVMEDIA_TYPE_VIDEO:
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if((ret = ff_start_frame(link, frame)) < 0)
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return ret;
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if((ret = ff_draw_slice(link, 0, frame->video->h, 1)) < 0)
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return ret;
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if((ret = ff_end_frame(link)) < 0)
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return ret;
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return ret;
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case AVMEDIA_TYPE_AUDIO:
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return ff_filter_samples(link, frame);
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default: return AVERROR(EINVAL);
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/* Consistency checks */
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if (link->type == AVMEDIA_TYPE_VIDEO) {
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if (strcmp(link->dst->filter->name, "scale")) {
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av_assert1(frame->format == link->format);
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av_assert1(frame->video->w == link->w);
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av_assert1(frame->video->h == link->h);
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}
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} else {
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av_assert1(frame->format == link->format);
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av_assert1(frame->audio->channels == link->channels);
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av_assert1(frame->audio->channel_layout == link->channel_layout);
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av_assert1(frame->audio->sample_rate == link->sample_rate);
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}
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/* Go directly to actual filtering if possible */
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if (link->type == AVMEDIA_TYPE_AUDIO &&
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link->min_samples &&
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(link->partial_buf ||
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frame->audio->nb_samples < link->min_samples ||
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frame->audio->nb_samples > link->max_samples)) {
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return ff_filter_frame_needs_framing(link, frame);
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} else {
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return ff_filter_frame_framed(link, frame);
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}
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}
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@ -158,204 +158,3 @@ AVFilterBufferRef *ff_get_video_buffer(AVFilterLink *link, int perms, int w, int
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return ret;
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}
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static int default_start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
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{
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AVFilterLink *outlink = NULL;
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if (inlink->dstpad->filter_frame)
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return 0;
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if (inlink->dst->nb_outputs)
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outlink = inlink->dst->outputs[0];
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if (outlink && (inlink->dstpad->start_frame || inlink->dstpad->end_frame)) {
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AVFilterBufferRef *buf_out;
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outlink->out_buf = ff_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
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if (!outlink->out_buf)
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return AVERROR(ENOMEM);
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avfilter_copy_buffer_ref_props(outlink->out_buf, picref);
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outlink->out_buf->video->w = outlink->w;
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outlink->out_buf->video->h = outlink->h;
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buf_out = avfilter_ref_buffer(outlink->out_buf, ~0);
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if (!buf_out)
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return AVERROR(ENOMEM);
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return ff_start_frame(outlink, buf_out);
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}
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return 0;
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}
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static void clear_link(AVFilterLink *link)
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{
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avfilter_unref_bufferp(&link->cur_buf);
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avfilter_unref_bufferp(&link->src_buf);
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avfilter_unref_bufferp(&link->out_buf);
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link->cur_buf_copy = NULL; /* we do not own the reference */
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}
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/* XXX: should we do the duplicating of the picture ref here, instead of
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* forcing the source filter to do it? */
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int ff_start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
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{
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int (*start_frame)(AVFilterLink *, AVFilterBufferRef *);
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AVFilterPad *src = link->srcpad;
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AVFilterPad *dst = link->dstpad;
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int ret, perms;
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AVFilterCommand *cmd= link->dst->command_queue;
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int64_t pts;
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FF_TPRINTF_START(NULL, start_frame); ff_tlog_link(NULL, link, 0); ff_tlog(NULL, " "); ff_tlog_ref(NULL, picref, 1);
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if (strcmp(link->dst->filter->name, "scale")) {
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av_assert1(picref->format == link->format);
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av_assert1(picref->video->w == link->w);
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av_assert1(picref->video->h == link->h);
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}
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if (link->closed) {
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avfilter_unref_buffer(picref);
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return AVERROR_EOF;
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}
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if (!(start_frame = dst->start_frame))
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start_frame = default_start_frame;
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av_assert1((picref->perms & src->min_perms) == src->min_perms);
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picref->perms &= ~ src->rej_perms;
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perms = picref->perms;
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if (picref->linesize[0] < 0)
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perms |= AV_PERM_NEG_LINESIZES;
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/* prepare to copy the picture if it has insufficient permissions */
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if ((dst->min_perms & perms) != dst->min_perms || dst->rej_perms & perms) {
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av_log(link->dst, AV_LOG_DEBUG,
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"frame copy needed (have perms %x, need %x, reject %x)\n",
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picref->perms,
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link->dstpad->min_perms, link->dstpad->rej_perms);
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link->cur_buf = ff_get_video_buffer(link, dst->min_perms, link->w, link->h);
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if (!link->cur_buf) {
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avfilter_unref_bufferp(&picref);
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return AVERROR(ENOMEM);
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}
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link->src_buf = picref;
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avfilter_copy_buffer_ref_props(link->cur_buf, link->src_buf);
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/* copy palette if required */
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if (av_pix_fmt_desc_get(link->format)->flags & PIX_FMT_PAL)
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memcpy(link->cur_buf->data[1], link->src_buf-> data[1], AVPALETTE_SIZE);
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}
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else
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link->cur_buf = picref;
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link->cur_buf_copy = link->cur_buf;
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while(cmd && cmd->time <= picref->pts * av_q2d(link->time_base)){
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av_log(link->dst, AV_LOG_DEBUG,
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"Processing command time:%f command:%s arg:%s\n",
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cmd->time, cmd->command, cmd->arg);
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avfilter_process_command(link->dst, cmd->command, cmd->arg, 0, 0, cmd->flags);
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ff_command_queue_pop(link->dst);
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cmd= link->dst->command_queue;
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}
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pts = link->cur_buf->pts;
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ret = start_frame(link, link->cur_buf);
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ff_update_link_current_pts(link, pts);
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if (ret < 0)
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clear_link(link);
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else
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/* incoming buffers must not be freed in start frame,
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because they can still be in use by the automatic copy mechanism */
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av_assert1(link->cur_buf_copy->buf->refcount > 0);
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return ret;
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}
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||||
|
||||
static int default_end_frame(AVFilterLink *inlink)
|
||||
{
|
||||
AVFilterLink *outlink = NULL;
|
||||
|
||||
if (inlink->dstpad->filter_frame) {
|
||||
int ret = inlink->dstpad->filter_frame(inlink, inlink->cur_buf);
|
||||
inlink->cur_buf = NULL;
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (inlink->dst->nb_outputs)
|
||||
outlink = inlink->dst->outputs[0];
|
||||
|
||||
if (outlink) {
|
||||
if (inlink->dstpad->filter_frame) {
|
||||
int ret = inlink->dstpad->filter_frame(inlink, inlink->cur_buf);
|
||||
inlink->cur_buf = NULL;
|
||||
return ret;
|
||||
} else if (inlink->dstpad->start_frame || inlink->dstpad->end_frame){
|
||||
return ff_end_frame(outlink);
|
||||
} else {
|
||||
int ret = ff_filter_frame(outlink, inlink->cur_buf);
|
||||
inlink->cur_buf = NULL;
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int ff_end_frame(AVFilterLink *link)
|
||||
{
|
||||
int (*end_frame)(AVFilterLink *);
|
||||
int ret;
|
||||
|
||||
if (!(end_frame = link->dstpad->end_frame))
|
||||
end_frame = default_end_frame;
|
||||
|
||||
ret = end_frame(link);
|
||||
|
||||
clear_link(link);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int ff_draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
|
||||
{
|
||||
uint8_t *src[4], *dst[4];
|
||||
int i, j, vsub;
|
||||
|
||||
FF_TPRINTF_START(NULL, draw_slice); ff_tlog_link(NULL, link, 0); ff_tlog(NULL, " y:%d h:%d dir:%d\n", y, h, slice_dir);
|
||||
|
||||
/* copy the slice if needed for permission reasons */
|
||||
if (link->src_buf) {
|
||||
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(link->format);
|
||||
vsub = desc->log2_chroma_h;
|
||||
|
||||
for (i = 0; i < 4; i++) {
|
||||
if (link->src_buf->data[i]) {
|
||||
src[i] = link->src_buf-> data[i] +
|
||||
(y >> (i==1 || i==2 ? vsub : 0)) * link->src_buf-> linesize[i];
|
||||
dst[i] = link->cur_buf_copy->data[i] +
|
||||
(y >> (i==1 || i==2 ? vsub : 0)) * link->cur_buf_copy->linesize[i];
|
||||
} else
|
||||
src[i] = dst[i] = NULL;
|
||||
}
|
||||
|
||||
for (i = 0; i < 4; i++) {
|
||||
int planew =
|
||||
av_image_get_linesize(link->format, link->cur_buf_copy->video->w, i);
|
||||
|
||||
if (!src[i]) continue;
|
||||
|
||||
for (j = 0; j < h >> (i==1 || i==2 ? vsub : 0); j++) {
|
||||
memcpy(dst[i], src[i], planew);
|
||||
src[i] += link->src_buf->linesize[i];
|
||||
dst[i] += link->cur_buf_copy->linesize[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* incoming buffers must not be freed in start frame,
|
||||
because they can still be in use by the automatic copy mechanism */
|
||||
av_assert1(link->cur_buf_copy->buf->refcount > 0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user