# include "libavfilter/avfilter.h"
# include "libavfilter/avfiltergraph.h"
# include "libavfilter/buffersink.h"
+# include "libavfilter/buffersrc.h"
#endif
#include <SDL.h>
int step;
#if CONFIG_AVFILTER
+ AVFilterContext *in_video_filter; ///< the first filter in the video chain
AVFilterContext *out_video_filter; ///< the last filter in the video chain
+ int use_dr1;
+ FrameBuffer *buffer_pool;
#endif
int refresh;
}
#if CONFIG_AVFILTER
-typedef struct {
- VideoState *is;
- AVFrame *frame;
- int use_dr1;
-} FilterPriv;
-
-static int input_get_buffer(AVCodecContext *codec, AVFrame *pic)
-{
- AVFilterContext *ctx = codec->opaque;
- AVFilterBufferRef *ref;
- int perms = AV_PERM_WRITE;
- int i, w, h, stride[AV_NUM_DATA_POINTERS];
- unsigned edge;
- int pixel_size;
-
- av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
-
- if (codec->codec->capabilities & CODEC_CAP_NEG_LINESIZES)
- perms |= AV_PERM_NEG_LINESIZES;
-
- if (pic->buffer_hints & FF_BUFFER_HINTS_VALID) {
- if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE) perms |= AV_PERM_READ;
- if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) perms |= AV_PERM_PRESERVE;
- if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) perms |= AV_PERM_REUSE2;
- }
- if (pic->reference) perms |= AV_PERM_READ | AV_PERM_PRESERVE;
-
- w = codec->width;
- h = codec->height;
-
- if(av_image_check_size(w, h, 0, codec) || codec->pix_fmt<0)
- return -1;
-
- avcodec_align_dimensions2(codec, &w, &h, stride);
- edge = codec->flags & CODEC_FLAG_EMU_EDGE ? 0 : avcodec_get_edge_width();
- w += edge << 1;
- h += edge << 1;
- if (codec->pix_fmt != ctx->outputs[0]->format) {
- av_log(codec, AV_LOG_ERROR, "Pixel format mismatches %d %d\n", codec->pix_fmt, ctx->outputs[0]->format);
- return -1;
- }
- if (!(ref = avfilter_get_video_buffer(ctx->outputs[0], perms, w, h)))
- return -1;
-
- pixel_size = av_pix_fmt_descriptors[ref->format].comp[0].step_minus1 + 1;
- ref->video->w = codec->width;
- ref->video->h = codec->height;
- for (i = 0; i < 4; i ++) {
- unsigned hshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_w : 0;
- unsigned vshift = (i == 1 || i == 2) ? av_pix_fmt_descriptors[ref->format].log2_chroma_h : 0;
-
- pic->base[i] = ref->data[i];
- if (ref->data[i]) {
- ref->data[i] += ((edge * pixel_size) >> hshift) + ((edge * ref->linesize[i]) >> vshift);
- }
- pic->data[i] = ref->data[i];
- pic->linesize[i] = ref->linesize[i];
- }
- pic->opaque = ref;
- pic->type = FF_BUFFER_TYPE_USER;
- pic->reordered_opaque = codec->reordered_opaque;
- pic->width = codec->width;
- pic->height = codec->height;
- pic->format = codec->pix_fmt;
- pic->sample_aspect_ratio = codec->sample_aspect_ratio;
- if (codec->pkt) pic->pkt_pts = codec->pkt->pts;
- else pic->pkt_pts = AV_NOPTS_VALUE;
- return 0;
-}
-
-static void input_release_buffer(AVCodecContext *codec, AVFrame *pic)
-{
- memset(pic->data, 0, sizeof(pic->data));
- avfilter_unref_buffer(pic->opaque);
-}
-
-static int input_reget_buffer(AVCodecContext *codec, AVFrame *pic)
-{
- AVFilterBufferRef *ref = pic->opaque;
-
- if (pic->data[0] == NULL) {
- pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
- return codec->get_buffer(codec, pic);
- }
-
- if ((codec->width != ref->video->w) || (codec->height != ref->video->h) ||
- (codec->pix_fmt != ref->format)) {
- av_log(codec, AV_LOG_ERROR, "Picture properties changed.\n");
- return -1;
- }
-
- pic->reordered_opaque = codec->reordered_opaque;
- if (codec->pkt) pic->pkt_pts = codec->pkt->pts;
- else pic->pkt_pts = AV_NOPTS_VALUE;
- return 0;
-}
-
-static int input_init(AVFilterContext *ctx, const char *args, void *opaque)
-{
- FilterPriv *priv = ctx->priv;
- AVCodecContext *codec;
- if (!opaque) return -1;
-
- priv->is = opaque;
- codec = priv->is->video_st->codec;
- codec->opaque = ctx;
- if (codec->codec->capabilities & CODEC_CAP_DR1) {
- av_assert0(codec->flags & CODEC_FLAG_EMU_EDGE);
- priv->use_dr1 = 1;
- codec->get_buffer = input_get_buffer;
- codec->release_buffer = input_release_buffer;
- codec->reget_buffer = input_reget_buffer;
- codec->thread_safe_callbacks = 1;
- }
-
- priv->frame = avcodec_alloc_frame();
-
- return 0;
-}
-
-static void input_uninit(AVFilterContext *ctx)
-{
- FilterPriv *priv = ctx->priv;
- av_free(priv->frame);
-}
-
-static int input_request_frame(AVFilterLink *link)
-{
- FilterPriv *priv = link->src->priv;
- AVFilterBufferRef *picref;
- int64_t pts = 0;
- AVPacket pkt;
- int ret;
-
- while (!(ret = get_video_frame(priv->is, priv->frame, &pts, &pkt)))
- av_free_packet(&pkt);
- if (ret < 0)
- return -1;
-
- if (priv->use_dr1 && priv->frame->opaque) {
- picref = avfilter_ref_buffer(priv->frame->opaque, ~0);
- } else {
- picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, priv->frame->width, priv->frame->height);
- av_image_copy(picref->data, picref->linesize,
- (const uint8_t **)(void **)priv->frame->data, priv->frame->linesize,
- picref->format, priv->frame->width, priv->frame->height);
- }
- av_free_packet(&pkt);
-
- avfilter_copy_frame_props(picref, priv->frame);
- picref->video->sample_aspect_ratio = av_guess_sample_aspect_ratio(priv->is->ic, priv->is->video_st, priv->frame);
- picref->pts = pts;
-
- avfilter_start_frame(link, picref);
- avfilter_draw_slice(link, 0, picref->video->h, 1);
- avfilter_end_frame(link);
-
- return 0;
-}
-
-static int input_query_formats(AVFilterContext *ctx)
-{
- FilterPriv *priv = ctx->priv;
- enum PixelFormat pix_fmts[] = {
- priv->is->video_st->codec->pix_fmt, PIX_FMT_NONE
- };
-
- avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
- return 0;
-}
-
-static int input_config_props(AVFilterLink *link)
-{
- FilterPriv *priv = link->src->priv;
- AVStream *s = priv->is->video_st;
-
- link->w = s->codec->width;
- link->h = s->codec->height;
- link->sample_aspect_ratio = s->sample_aspect_ratio.num ?
- s->sample_aspect_ratio : s->codec->sample_aspect_ratio;
- link->time_base = s->time_base;
-
- return 0;
-}
-
-static AVFilter input_filter =
-{
- .name = "ffplay_input",
-
- .priv_size = sizeof(FilterPriv),
-
- .init = input_init,
- .uninit = input_uninit,
-
- .query_formats = input_query_formats,
-
- .inputs = (AVFilterPad[]) {{ .name = NULL }},
- .outputs = (AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .request_frame = input_request_frame,
- .config_props = input_config_props, },
- { .name = NULL }},
-};
-
static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
{
static const enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
char sws_flags_str[128];
+ char buffersrc_args[256];
int ret;
AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
- AVFilterContext *filt_src = NULL, *filt_out = NULL, *filt_format;;
+ AVFilterContext *filt_src = NULL, *filt_out = NULL, *filt_format;
+ AVCodecContext *codec = is->video_st->codec;
+
snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
graph->scale_sws_opts = av_strdup(sws_flags_str);
- if ((ret = avfilter_graph_create_filter(&filt_src, &input_filter, "src",
- NULL, is, graph)) < 0)
+ snprintf(buffersrc_args, sizeof(buffersrc_args), "%d:%d:%d:%d:%d:%d:%d",
+ codec->width, codec->height, codec->pix_fmt,
+ is->video_st->time_base.num, is->video_st->time_base.den,
+ codec->sample_aspect_ratio.num, codec->sample_aspect_ratio.den);
+
+
+ if ((ret = avfilter_graph_create_filter(&filt_src,
+ avfilter_get_by_name("buffer"),
+ "src", buffersrc_args, NULL,
+ graph)) < 0)
return ret;
#if FF_API_OLD_VSINK_API
if ((ret = avfilter_graph_config(graph, NULL)) < 0)
return ret;
+ is->in_video_filter = filt_src;
is->out_video_filter = filt_out;
+ if (codec->codec->capabilities & CODEC_CAP_DR1) {
+ is->use_dr1 = 1;
+ codec->get_buffer = codec_get_buffer;
+ codec->release_buffer = codec_release_buffer;
+ codec->opaque = &is->buffer_pool;
+ }
+
return ret;
}
#if CONFIG_AVFILTER
AVFilterGraph *graph = avfilter_graph_alloc();
- AVFilterContext *filt_out = NULL;
+ AVFilterContext *filt_out = NULL, *filt_in = NULL;
int last_w = is->video_st->codec->width;
int last_h = is->video_st->codec->height;
+ enum PixelFormat last_format = is->video_st->codec->pix_fmt;
if ((ret = configure_video_filters(graph, is, vfilters)) < 0) {
SDL_Event event;
SDL_PushEvent(&event);
goto the_end;
}
+ filt_in = is->in_video_filter;
filt_out = is->out_video_filter;
#endif
for (;;) {
-#if !CONFIG_AVFILTER
AVPacket pkt;
-#else
+#if CONFIG_AVFILTER
AVFilterBufferRef *picref;
AVRational tb = filt_out->inputs[0]->time_base;
#endif
while (is->paused && !is->videoq.abort_request)
SDL_Delay(10);
+
+ ret = get_video_frame(is, frame, &pts_int, &pkt);
+ if (ret < 0)
+ goto the_end;
+
+ if (!ret) {
+ av_free_packet(&pkt);
+ continue;
+ }
+
+ is->frame_last_filter_delay = av_gettime() / 1000000.0 - is->frame_last_returned_time;
+ if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)
+ is->frame_last_filter_delay = 0;
+
#if CONFIG_AVFILTER
if ( last_w != is->video_st->codec->width
- || last_h != is->video_st->codec->height) {
+ || last_h != is->video_st->codec->height
+ || last_format != is->video_st->codec->pix_fmt) {
av_log(NULL, AV_LOG_INFO, "Frame changed from size:%dx%d to size:%dx%d\n",
last_w, last_h, is->video_st->codec->width, is->video_st->codec->height);
avfilter_graph_free(&graph);
graph = avfilter_graph_alloc();
- if ((ret = configure_video_filters(graph, is, vfilters)) < 0)
+ if ((ret = configure_video_filters(graph, is, vfilters)) < 0) {
+ av_free_packet(&pkt);
goto the_end;
+ }
+ filt_in = is->in_video_filter;
filt_out = is->out_video_filter;
last_w = is->video_st->codec->width;
last_h = is->video_st->codec->height;
+ last_format = is->video_st->codec->pix_fmt;
}
- ret = av_buffersink_get_buffer_ref(filt_out, &picref, 0);
- if (picref) {
+
+ frame->pts = pts_int;
+ frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame);
+ if (is->use_dr1) {
+ FrameBuffer *buf = frame->opaque;
+ AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
+ frame->data, frame->linesize,
+ AV_PERM_READ | AV_PERM_PRESERVE,
+ frame->width, frame->height,
+ frame->format);
+
+ avfilter_copy_frame_props(fb, frame);
+ fb->buf->priv = buf;
+ fb->buf->free = filter_release_buffer;
+
+ buf->refcount++;
+ av_buffersrc_buffer(filt_in, fb);
+
+ } else
+ av_buffersrc_write_frame(filt_in, frame);
+
+ av_free_packet(&pkt);
+
+ while (ret >= 0) {
+ ret = av_buffersink_get_buffer_ref(filt_out, &picref, 0);
+ if (ret < 0) {
+ ret = 0;
+ break;
+ }
+
avfilter_fill_frame_from_video_buffer_ref(frame, picref);
+
pts_int = picref->pts;
tb = filt_out->inputs[0]->time_base;
pos = picref->pos;
frame->opaque = picref;
- ret = 1;
- }
-
- if (ret >= 0 && av_cmp_q(tb, is->video_st->time_base)) {
- av_unused int64_t pts1 = pts_int;
- pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
- av_dlog(NULL, "video_thread(): "
- "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
- tb.num, tb.den, pts1,
- is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
+ if (av_cmp_q(tb, is->video_st->time_base)) {
+ av_unused int64_t pts1 = pts_int;
+ pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base);
+ av_dlog(NULL, "video_thread(): "
+ "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n",
+ tb.num, tb.den, pts1,
+ is->video_st->time_base.num, is->video_st->time_base.den, pts_int);
+ }
+ pts = pts_int * av_q2d(is->video_st->time_base);
+ ret = queue_picture(is, frame, pts, pos);
}
#else
- ret = get_video_frame(is, frame, &pts_int, &pkt);
- pos = pkt.pos;
- av_free_packet(&pkt);
- if (ret == 0)
- continue;
-#endif
-
- if (ret < 0)
- goto the_end;
-
- is->frame_last_filter_delay = av_gettime() / 1000000.0 - is->frame_last_returned_time;
- if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)
- is->frame_last_filter_delay = 0;
-
-#if CONFIG_AVFILTER
- if (!picref)
- continue;
-#endif
-
pts = pts_int * av_q2d(is->video_st->time_base);
-
- ret = queue_picture(is, frame, pts, pos);
+ ret = queue_picture(is, frame, pts, pkt.pos);
+#endif
if (ret < 0)
goto the_end;
ic->streams[stream_index]->discard = AVDISCARD_ALL;
avcodec_close(avctx);
+ free_buffer_pool(&is->buffer_pool);
switch (avctx->codec_type) {
case AVMEDIA_TYPE_AUDIO:
is->audio_st = NULL;
{
int flags;
VideoState *is;
+ char dummy_videodriver[] = "SDL_VIDEODRIVER=dummy";
av_log_set_flags(AV_LOG_SKIP_REPEATED);
parse_loglevel(argc, argv, options);
flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
if (audio_disable)
flags &= ~SDL_INIT_AUDIO;
+ if (display_disable)
+ SDL_putenv(dummy_videodriver); /* For the event queue, we always need a video driver. */
#if !defined(__MINGW32__) && !defined(__APPLE__)
flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */
#endif
projects / ffmpeg / blobdiff