diff options
Diffstat (limited to 'libavfilter/avfilter.c')
-rw-r--r-- | libavfilter/avfilter.c | 635 |
1 files changed, 512 insertions, 123 deletions
diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c index 4098973..963f5e6 100644 --- a/libavfilter/avfilter.c +++ b/libavfilter/avfilter.c @@ -2,26 +2,29 @@ * filter layer * Copyright (c) 2007 Bobby Bingham * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +#include "libavutil/atomic.h" +#include "libavutil/avassert.h" #include "libavutil/avstring.h" #include "libavutil/channel_layout.h" #include "libavutil/common.h" +#include "libavutil/eval.h" #include "libavutil/imgutils.h" #include "libavutil/internal.h" #include "libavutil/opt.h" @@ -33,34 +36,82 @@ #include "avfilter.h" #include "formats.h" #include "internal.h" -#include "video.h" + +static int ff_filter_frame_framed(AVFilterLink *link, AVFrame *frame); + +void ff_tlog_ref(void *ctx, AVFrame *ref, int end) +{ + av_unused char buf[16]; + ff_tlog(ctx, + "ref[%p buf:%p data:%p linesize[%d, %d, %d, %d] pts:%"PRId64" pos:%"PRId64, + ref, ref->buf, ref->data[0], + ref->linesize[0], ref->linesize[1], ref->linesize[2], ref->linesize[3], + ref->pts, av_frame_get_pkt_pos(ref)); + + if (ref->width) { + ff_tlog(ctx, " a:%d/%d s:%dx%d i:%c iskey:%d type:%c", + ref->sample_aspect_ratio.num, ref->sample_aspect_ratio.den, + ref->width, ref->height, + !ref->interlaced_frame ? 'P' : /* Progressive */ + ref->top_field_first ? 'T' : 'B', /* Top / Bottom */ + ref->key_frame, + av_get_picture_type_char(ref->pict_type)); + } + if (ref->nb_samples) { + ff_tlog(ctx, " cl:%"PRId64"d n:%d r:%d", + ref->channel_layout, + ref->nb_samples, + ref->sample_rate); + } + + ff_tlog(ctx, "]%s", end ? "\n" : ""); +} unsigned avfilter_version(void) { + av_assert0(LIBAVFILTER_VERSION_MICRO >= 100); return LIBAVFILTER_VERSION_INT; } const char *avfilter_configuration(void) { - return LIBAV_CONFIGURATION; + return FFMPEG_CONFIGURATION; } const char *avfilter_license(void) { #define LICENSE_PREFIX "libavfilter license: " - return LICENSE_PREFIX LIBAV_LICENSE + sizeof(LICENSE_PREFIX) - 1; + return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1; } -void ff_insert_pad(unsigned idx, unsigned *count, size_t padidx_off, +void ff_command_queue_pop(AVFilterContext *filter) +{ + AVFilterCommand *c= filter->command_queue; + av_freep(&c->arg); + av_freep(&c->command); + filter->command_queue= c->next; + av_free(c); +} + +int ff_insert_pad(unsigned idx, unsigned *count, size_t padidx_off, AVFilterPad **pads, AVFilterLink ***links, AVFilterPad *newpad) { + AVFilterLink **newlinks; + AVFilterPad *newpads; unsigned i; idx = FFMIN(idx, *count); - *pads = av_realloc(*pads, sizeof(AVFilterPad) * (*count + 1)); - *links = av_realloc(*links, sizeof(AVFilterLink*) * (*count + 1)); + newpads = av_realloc_array(*pads, *count + 1, sizeof(AVFilterPad)); + newlinks = av_realloc_array(*links, *count + 1, sizeof(AVFilterLink*)); + if (newpads) + *pads = newpads; + if (newlinks) + *links = newlinks; + if (!newpads || !newlinks) + return AVERROR(ENOMEM); + memmove(*pads + idx + 1, *pads + idx, sizeof(AVFilterPad) * (*count - idx)); memmove(*links + idx + 1, *links + idx, sizeof(AVFilterLink*) * (*count - idx)); memcpy(*pads + idx, newpad, sizeof(AVFilterPad)); @@ -68,8 +119,10 @@ void ff_insert_pad(unsigned idx, unsigned *count, size_t padidx_off, (*count)++; for (i = idx + 1; i < *count; i++) - if (*links[i]) - (*(unsigned *)((uint8_t *) *links[i] + padidx_off))++; + if ((*links)[i]) + (*(unsigned *)((uint8_t *) (*links)[i] + padidx_off))++; + + return 0; } int avfilter_link(AVFilterContext *src, unsigned srcpad, @@ -83,8 +136,9 @@ int avfilter_link(AVFilterContext *src, unsigned srcpad, if (src->output_pads[srcpad].type != dst->input_pads[dstpad].type) { av_log(src, AV_LOG_ERROR, - "Media type mismatch between the '%s' filter output pad %d and the '%s' filter input pad %d\n", - src->name, srcpad, dst->name, dstpad); + "Media type mismatch between the '%s' filter output pad %d (%s) and the '%s' filter input pad %d (%s)\n", + src->name, srcpad, (char *)av_x_if_null(av_get_media_type_string(src->output_pads[srcpad].type), "?"), + dst->name, dstpad, (char *)av_x_if_null(av_get_media_type_string(dst-> input_pads[dstpad].type), "?")); return AVERROR(EINVAL); } @@ -99,12 +153,32 @@ int avfilter_link(AVFilterContext *src, unsigned srcpad, link->srcpad = &src->output_pads[srcpad]; link->dstpad = &dst->input_pads[dstpad]; link->type = src->output_pads[srcpad].type; - assert(AV_PIX_FMT_NONE == -1 && AV_SAMPLE_FMT_NONE == -1); + av_assert0(AV_PIX_FMT_NONE == -1 && AV_SAMPLE_FMT_NONE == -1); link->format = -1; return 0; } +void avfilter_link_free(AVFilterLink **link) +{ + if (!*link) + return; + + av_frame_free(&(*link)->partial_buf); + + av_freep(link); +} + +int avfilter_link_get_channels(AVFilterLink *link) +{ + return link->channels; +} + +void avfilter_link_set_closed(AVFilterLink *link, int closed) +{ + link->closed = closed; +} + int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt, unsigned filt_srcpad_idx, unsigned filt_dstpad_idx) { @@ -150,6 +224,7 @@ int avfilter_config_links(AVFilterContext *filter) for (i = 0; i < filter->nb_inputs; i ++) { AVFilterLink *link = filter->inputs[i]; + AVFilterLink *inlink; if (!link) continue; if (!link->src || !link->dst) { @@ -158,6 +233,9 @@ int avfilter_config_links(AVFilterContext *filter) return AVERROR(EINVAL); } + inlink = link->src->nb_inputs ? link->src->inputs[0] : NULL; + link->current_pts = AV_NOPTS_VALUE; + switch (link->init_state) { case AVLINK_INIT: continue; @@ -185,26 +263,39 @@ int avfilter_config_links(AVFilterContext *filter) return ret; } - if (link->time_base.num == 0 && link->time_base.den == 0) - link->time_base = link->src->nb_inputs ? - link->src->inputs[0]->time_base : AV_TIME_BASE_Q; + switch (link->type) { + case AVMEDIA_TYPE_VIDEO: + if (!link->time_base.num && !link->time_base.den) + link->time_base = inlink ? inlink->time_base : AV_TIME_BASE_Q; - if (link->type == AVMEDIA_TYPE_VIDEO) { if (!link->sample_aspect_ratio.num && !link->sample_aspect_ratio.den) - link->sample_aspect_ratio = link->src->nb_inputs ? - link->src->inputs[0]->sample_aspect_ratio : (AVRational){1,1}; + link->sample_aspect_ratio = inlink ? + inlink->sample_aspect_ratio : (AVRational){1,1}; + + if (inlink && !link->frame_rate.num && !link->frame_rate.den) + link->frame_rate = inlink->frame_rate; - if (link->src->nb_inputs) { + if (inlink) { if (!link->w) - link->w = link->src->inputs[0]->w; + link->w = inlink->w; if (!link->h) - link->h = link->src->inputs[0]->h; + link->h = inlink->h; } else if (!link->w || !link->h) { av_log(link->src, AV_LOG_ERROR, "Video source filters must set their output link's " "width and height\n"); return AVERROR(EINVAL); } + break; + + case AVMEDIA_TYPE_AUDIO: + if (inlink) { + if (!link->time_base.num && !link->time_base.den) + link->time_base = inlink->time_base; + } + + if (!link->time_base.num && !link->time_base.den) + link->time_base = (AVRational) {1, link->sample_rate}; } if ((config_link = link->dstpad->config_props)) @@ -222,11 +313,11 @@ int avfilter_config_links(AVFilterContext *filter) return 0; } -void ff_dlog_link(void *ctx, AVFilterLink *link, int end) +void ff_tlog_link(void *ctx, AVFilterLink *link, int end) { if (link->type == AVMEDIA_TYPE_VIDEO) { - av_dlog(ctx, - "link[%p s:%dx%d fmt:%-16s %-16s->%-16s]%s", + ff_tlog(ctx, + "link[%p s:%dx%d fmt:%s %s->%s]%s", link, link->w, link->h, av_get_pix_fmt_name(link->format), link->src ? link->src->filter->name : "", @@ -236,9 +327,9 @@ void ff_dlog_link(void *ctx, AVFilterLink *link, int end) char buf[128]; av_get_channel_layout_string(buf, sizeof(buf), -1, link->channel_layout); - av_dlog(ctx, - "link[%p r:%d cl:%s fmt:%-16s %-16s->%-16s]%s", - link, link->sample_rate, buf, + ff_tlog(ctx, + "link[%p r:%d cl:%s fmt:%s %s->%s]%s", + link, (int)link->sample_rate, buf, av_get_sample_fmt_name(link->format), link->src ? link->src->filter->name : "", link->dst ? link->dst->filter->name : "", @@ -248,13 +339,33 @@ void ff_dlog_link(void *ctx, AVFilterLink *link, int end) int ff_request_frame(AVFilterLink *link) { - FF_DPRINTF_START(NULL, request_frame); ff_dlog_link(NULL, link, 1); - - if (link->srcpad->request_frame) - return link->srcpad->request_frame(link); - else if (link->src->inputs[0]) - return ff_request_frame(link->src->inputs[0]); - else return -1; + int ret = -1; + FF_TPRINTF_START(NULL, request_frame); ff_tlog_link(NULL, link, 1); + + if (link->closed) + return AVERROR_EOF; + av_assert0(!link->frame_requested); + link->frame_requested = 1; + while (link->frame_requested) { + if (link->srcpad->request_frame) + ret = link->srcpad->request_frame(link); + else if (link->src->inputs[0]) + ret = ff_request_frame(link->src->inputs[0]); + if (ret == AVERROR_EOF && link->partial_buf) { + AVFrame *pbuf = link->partial_buf; + link->partial_buf = NULL; + ret = ff_filter_frame_framed(link, pbuf); + } + if (ret < 0) { + link->frame_requested = 0; + if (ret == AVERROR_EOF) + link->closed = 1; + } else { + av_assert0(!link->frame_requested || + link->flags & FF_LINK_FLAG_REQUEST_LOOP); + } + } + return ret; } int ff_poll_frame(AVFilterLink *link) @@ -275,7 +386,97 @@ int ff_poll_frame(AVFilterLink *link) return min; } +static const char *const var_names[] = { + "t", + "n", + "pos", + "w", + "h", + NULL +}; + +enum { + VAR_T, + VAR_N, + VAR_POS, + VAR_W, + VAR_H, + VAR_VARS_NB +}; + +static int set_enable_expr(AVFilterContext *ctx, const char *expr) +{ + int ret; + char *expr_dup; + AVExpr *old = ctx->enable; + + if (!(ctx->filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)) { + av_log(ctx, AV_LOG_ERROR, "Timeline ('enable' option) not supported " + "with filter '%s'\n", ctx->filter->name); + return AVERROR_PATCHWELCOME; + } + + expr_dup = av_strdup(expr); + if (!expr_dup) + return AVERROR(ENOMEM); + + if (!ctx->var_values) { + ctx->var_values = av_calloc(VAR_VARS_NB, sizeof(*ctx->var_values)); + if (!ctx->var_values) { + av_free(expr_dup); + return AVERROR(ENOMEM); + } + } + + ret = av_expr_parse((AVExpr**)&ctx->enable, expr_dup, var_names, + NULL, NULL, NULL, NULL, 0, ctx->priv); + if (ret < 0) { + av_log(ctx->priv, AV_LOG_ERROR, + "Error when evaluating the expression '%s' for enable\n", + expr_dup); + av_free(expr_dup); + return ret; + } + + av_expr_free(old); + av_free(ctx->enable_str); + ctx->enable_str = expr_dup; + return 0; +} + +void ff_update_link_current_pts(AVFilterLink *link, int64_t pts) +{ + if (pts == AV_NOPTS_VALUE) + return; + link->current_pts = av_rescale_q(pts, link->time_base, AV_TIME_BASE_Q); + /* TODO use duration */ + if (link->graph && link->age_index >= 0) + ff_avfilter_graph_update_heap(link->graph, link); +} + +int avfilter_process_command(AVFilterContext *filter, const char *cmd, const char *arg, char *res, int res_len, int flags) +{ + if(!strcmp(cmd, "ping")){ + char local_res[256] = {0}; + + if (!res) { + res = local_res; + res_len = sizeof(local_res); + } + av_strlcatf(res, res_len, "pong from:%s %s\n", filter->filter->name, filter->name); + if (res == local_res) + av_log(filter, AV_LOG_INFO, "%s", res); + return 0; + }else if(!strcmp(cmd, "enable")) { + return set_enable_expr(filter, arg); + }else if(filter->filter->process_command) { + return filter->filter->process_command(filter, cmd, arg, res, res_len, flags); + } + return AVERROR(ENOSYS); +} + static AVFilter *first_filter; +static AVFilter **last_filter = &first_filter; #if !FF_API_NOCONST_GET_NAME const @@ -289,18 +490,31 @@ AVFilter *avfilter_get_by_name(const char *name) while ((f = avfilter_next(f))) if (!strcmp(f->name, name)) - return f; + return (AVFilter *)f; return NULL; } int avfilter_register(AVFilter *filter) { - AVFilter **f = &first_filter; - while (*f) - f = &(*f)->next; - *f = filter; + AVFilter **f = last_filter; + int i; + + /* the filter must select generic or internal exclusively */ + av_assert0((filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE) != AVFILTER_FLAG_SUPPORT_TIMELINE); + + for(i=0; filter->inputs && filter->inputs[i].name; i++) { + const AVFilterPad *input = &filter->inputs[i]; + av_assert0( !input->filter_frame + || (!input->start_frame && !input->end_frame)); + } + filter->next = NULL; + + while(*f || avpriv_atomic_ptr_cas((void * volatile *)f, NULL, filter)) + f = &(*f)->next; + last_filter = &filter->next; + return 0; } @@ -332,10 +546,10 @@ int avfilter_pad_count(const AVFilterPad *pads) return count; } -static const char *filter_name(void *p) +static const char *default_filter_name(void *filter_ctx) { - AVFilterContext *filter = p; - return filter->filter->name; + AVFilterContext *ctx = filter_ctx; + return ctx->name ? ctx->name : ctx->filter->name; } static void *filter_child_next(void *obj, void *prev) @@ -350,10 +564,16 @@ static const AVClass *filter_child_class_next(const AVClass *prev) { const AVFilter *f = NULL; + /* find the filter that corresponds to prev */ while (prev && (f = avfilter_next(f))) if (f->priv_class == prev) break; + /* could not find filter corresponding to prev */ + if (prev && !f) + return NULL; + + /* find next filter with specific options */ while ((f = avfilter_next(f))) if (f->priv_class) return f->priv_class; @@ -362,18 +582,20 @@ static const AVClass *filter_child_class_next(const AVClass *prev) } #define OFFSET(x) offsetof(AVFilterContext, x) -#define FLAGS AV_OPT_FLAG_VIDEO_PARAM +#define FLAGS AV_OPT_FLAG_FILTERING_PARAM static const AVOption avfilter_options[] = { { "thread_type", "Allowed thread types", OFFSET(thread_type), AV_OPT_TYPE_FLAGS, { .i64 = AVFILTER_THREAD_SLICE }, 0, INT_MAX, FLAGS, "thread_type" }, { "slice", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AVFILTER_THREAD_SLICE }, .unit = "thread_type" }, + { "enable", "set enable expression", OFFSET(enable_str), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS }, { NULL }, }; static const AVClass avfilter_class = { .class_name = "AVFilter", - .item_name = filter_name, + .item_name = default_filter_name, .version = LIBAVUTIL_VERSION_INT, + .category = AV_CLASS_CATEGORY_FILTER, .child_next = filter_child_next, .child_class_next = filter_child_class_next, .option = avfilter_options, @@ -425,22 +647,22 @@ AVFilterContext *ff_filter_alloc(const AVFilter *filter, const char *inst_name) ret->nb_inputs = avfilter_pad_count(filter->inputs); if (ret->nb_inputs ) { - ret->input_pads = av_malloc(sizeof(AVFilterPad) * ret->nb_inputs); + ret->input_pads = av_malloc_array(ret->nb_inputs, sizeof(AVFilterPad)); if (!ret->input_pads) goto err; memcpy(ret->input_pads, filter->inputs, sizeof(AVFilterPad) * ret->nb_inputs); - ret->inputs = av_mallocz(sizeof(AVFilterLink*) * ret->nb_inputs); + ret->inputs = av_mallocz_array(ret->nb_inputs, sizeof(AVFilterLink*)); if (!ret->inputs) goto err; } ret->nb_outputs = avfilter_pad_count(filter->outputs); if (ret->nb_outputs) { - ret->output_pads = av_malloc(sizeof(AVFilterPad) * ret->nb_outputs); + ret->output_pads = av_malloc_array(ret->nb_outputs, sizeof(AVFilterPad)); if (!ret->output_pads) goto err; memcpy(ret->output_pads, filter->outputs, sizeof(AVFilterPad) * ret->nb_outputs); - ret->outputs = av_mallocz(sizeof(AVFilterLink*) * ret->nb_outputs); + ret->outputs = av_mallocz_array(ret->nb_outputs, sizeof(AVFilterLink*)); if (!ret->outputs) goto err; } @@ -490,13 +712,16 @@ static void free_link(AVFilterLink *link) ff_formats_unref(&link->out_samplerates); ff_channel_layouts_unref(&link->in_channel_layouts); ff_channel_layouts_unref(&link->out_channel_layouts); - av_freep(&link); + avfilter_link_free(&link); } void avfilter_free(AVFilterContext *filter) { int i; + if (!filter) + return; + if (filter->graph) ff_filter_graph_remove_filter(filter->graph, filter); @@ -519,41 +744,93 @@ void avfilter_free(AVFilterContext *filter) av_freep(&filter->inputs); av_freep(&filter->outputs); av_freep(&filter->priv); + while(filter->command_queue){ + ff_command_queue_pop(filter); + } + av_opt_free(filter); + av_expr_free(filter->enable); + filter->enable = NULL; + av_freep(&filter->var_values); av_freep(&filter->internal); av_free(filter); } -/* process a list of value1:value2:..., each value corresponding - * to subsequent AVOption, in the order they are declared */ -static int process_unnamed_options(AVFilterContext *ctx, AVDictionary **options, - const char *args) +static int process_options(AVFilterContext *ctx, AVDictionary **options, + const char *args) { const AVOption *o = NULL; - const char *p = args; - char *val; + int ret, count = 0; + char *av_uninit(parsed_key), *av_uninit(value); + const char *key; + int offset= -1; + + if (!args) + return 0; + + while (*args) { + const char *shorthand = NULL; - while (*p) { o = av_opt_next(ctx->priv, o); - if (!o) { - av_log(ctx, AV_LOG_ERROR, "More options provided than " - "this filter supports.\n"); - return AVERROR(EINVAL); + if (o) { + if (o->type == AV_OPT_TYPE_CONST || o->offset == offset) + continue; + offset = o->offset; + shorthand = o->name; } - if (o->type == AV_OPT_TYPE_CONST) - continue; - val = av_get_token(&p, ":"); - if (!val) - return AVERROR(ENOMEM); + ret = av_opt_get_key_value(&args, "=", ":", + shorthand ? AV_OPT_FLAG_IMPLICIT_KEY : 0, + &parsed_key, &value); + if (ret < 0) { + if (ret == AVERROR(EINVAL)) + av_log(ctx, AV_LOG_ERROR, "No option name near '%s'\n", args); + else + av_log(ctx, AV_LOG_ERROR, "Unable to parse '%s': %s\n", args, + av_err2str(ret)); + return ret; + } + if (*args) + args++; + if (parsed_key) { + key = parsed_key; + while ((o = av_opt_next(ctx->priv, o))); /* discard all remaining shorthand */ + } else { + key = shorthand; + } + + av_log(ctx, AV_LOG_DEBUG, "Setting '%s' to value '%s'\n", key, value); - av_dict_set(options, o->name, val, 0); + if (av_opt_find(ctx, key, NULL, 0, 0)) { + ret = av_opt_set(ctx, key, value, 0); + if (ret < 0) { + av_free(value); + av_free(parsed_key); + return ret; + } + } else { + av_dict_set(options, key, value, 0); + if ((ret = av_opt_set(ctx->priv, key, value, 0)) < 0) { + if (!av_opt_find(ctx->priv, key, NULL, 0, AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) { + if (ret == AVERROR_OPTION_NOT_FOUND) + av_log(ctx, AV_LOG_ERROR, "Option '%s' not found\n", key); + av_free(value); + av_free(parsed_key); + return ret; + } + } + } - av_freep(&val); - if (*p) - p++; + av_free(value); + av_free(parsed_key); + count++; } - return 0; + if (ctx->enable_str) { + ret = set_enable_expr(ctx, ctx->enable_str); + if (ret < 0) + return ret; + } + return count; } #if FF_API_AVFILTER_INIT_FILTER @@ -590,7 +867,9 @@ int avfilter_init_dict(AVFilterContext *ctx, AVDictionary **options) } } - if (ctx->filter->init) + if (ctx->filter->init_opaque) + ret = ctx->filter->init_opaque(ctx, NULL); + else if (ctx->filter->init) ret = ctx->filter->init(ctx); else if (ctx->filter->init_dict) ret = ctx->filter->init_dict(ctx, options); @@ -612,51 +891,20 @@ int avfilter_init_str(AVFilterContext *filter, const char *args) } #if FF_API_OLD_FILTER_OPTS - if (!strcmp(filter->filter->name, "scale") && - strchr(args, ':') && strchr(args, ':') < strchr(args, '=')) { - /* old w:h:flags=<flags> syntax */ - char *copy = av_strdup(args); - char *p; - - av_log(filter, AV_LOG_WARNING, "The <w>:<h>:flags=<flags> option " - "syntax is deprecated. Use either <w>:<h>:<flags> or " - "w=<w>:h=<h>:flags=<flags>.\n"); - - if (!copy) { - ret = AVERROR(ENOMEM); - goto fail; - } - - p = strrchr(copy, ':'); - if (p) { - *p++ = 0; - ret = av_dict_parse_string(&options, p, "=", ":", 0); - } - if (ret >= 0) - ret = process_unnamed_options(filter, &options, copy); - av_freep(©); - - if (ret < 0) - goto fail; - } else -#endif - - if (strchr(args, '=')) { - /* assume a list of key1=value1:key2=value2:... */ - ret = av_dict_parse_string(&options, args, "=", ":", 0); - if (ret < 0) - goto fail; -#if FF_API_OLD_FILTER_OPTS - } else if (!strcmp(filter->filter->name, "format") || + if ( !strcmp(filter->filter->name, "format") || !strcmp(filter->filter->name, "noformat") || !strcmp(filter->filter->name, "frei0r") || !strcmp(filter->filter->name, "frei0r_src") || - !strcmp(filter->filter->name, "ocv")) { + !strcmp(filter->filter->name, "ocv") || + !strcmp(filter->filter->name, "pan") || + !strcmp(filter->filter->name, "pp") || + !strcmp(filter->filter->name, "aevalsrc")) { /* a hack for compatibility with the old syntax * replace colons with |s */ char *copy = av_strdup(args); char *p = copy; int nb_leading = 0; // number of leading colons to skip + int deprecated = 0; if (!copy) { ret = AVERROR(ENOMEM); @@ -678,22 +926,58 @@ int avfilter_init_str(AVFilterContext *filter, const char *args) p++; } - if (strchr(p, ':')) { - av_log(filter, AV_LOG_WARNING, "This syntax is deprecated. Use " - "'|' to separate the list items.\n"); - } - + deprecated = strchr(p, ':') != NULL; + + if (!strcmp(filter->filter->name, "aevalsrc")) { + deprecated = 0; + while ((p = strchr(p, ':')) && p[1] != ':') { + const char *epos = strchr(p + 1, '='); + const char *spos = strchr(p + 1, ':'); + const int next_token_is_opt = epos && (!spos || epos < spos); + if (next_token_is_opt) { + p++; + break; + } + /* next token does not contain a '=', assume a channel expression */ + deprecated = 1; + *p++ = '|'; + } + if (p && *p == ':') { // double sep '::' found + deprecated = 1; + memmove(p, p + 1, strlen(p)); + } + } else while ((p = strchr(p, ':'))) *p++ = '|'; - ret = process_unnamed_options(filter, &options, copy); + if (deprecated) + av_log(filter, AV_LOG_WARNING, "This syntax is deprecated. Use " + "'|' to separate the list items.\n"); + + av_log(filter, AV_LOG_DEBUG, "compat: called with args=[%s]\n", copy); + ret = process_options(filter, &options, copy); av_freep(©); if (ret < 0) goto fail; #endif } else { - ret = process_unnamed_options(filter, &options, args); +#if CONFIG_MP_FILTER + if (!strcmp(filter->filter->name, "mp")) { + char *escaped; + + if (!strncmp(args, "filter=", 7)) + args += 7; + ret = av_escape(&escaped, args, ":=", AV_ESCAPE_MODE_BACKSLASH, 0); + if (ret < 0) { + av_log(filter, AV_LOG_ERROR, "Unable to escape MPlayer filters arg '%s'\n", args); + goto fail; + } + ret = process_options(filter, &options, escaped); + av_free(escaped); + } else +#endif + ret = process_options(filter, &options, args); if (ret < 0) goto fail; } @@ -730,15 +1014,20 @@ static int default_filter_frame(AVFilterLink *link, AVFrame *frame) return ff_filter_frame(link->dst->outputs[0], frame); } -int ff_filter_frame(AVFilterLink *link, AVFrame *frame) +static int ff_filter_frame_framed(AVFilterLink *link, AVFrame *frame) { int (*filter_frame)(AVFilterLink *, AVFrame *); + AVFilterContext *dstctx = link->dst; AVFilterPad *dst = link->dstpad; AVFrame *out = NULL; int ret; + AVFilterCommand *cmd= link->dst->command_queue; + int64_t pts; - FF_DPRINTF_START(NULL, filter_frame); - ff_dlog_link(NULL, link, 1); + if (link->closed) { + av_frame_free(&frame); + return AVERROR_EOF; + } if (!(filter_frame = dst->filter_frame)) filter_frame = default_filter_frame; @@ -747,6 +1036,7 @@ int ff_filter_frame(AVFilterLink *link, AVFrame *frame) if (dst->needs_writable && !av_frame_is_writable(frame)) { av_log(link->dst, AV_LOG_DEBUG, "Copying data in avfilter.\n"); + /* Maybe use ff_copy_buffer_ref instead? */ switch (link->type) { case AVMEDIA_TYPE_VIDEO: out = ff_get_video_buffer(link, link->w, link->h); @@ -769,7 +1059,7 @@ int ff_filter_frame(AVFilterLink *link, AVFrame *frame) switch (link->type) { case AVMEDIA_TYPE_VIDEO: - av_image_copy(out->data, out->linesize, frame->data, frame->linesize, + av_image_copy(out->data, out->linesize, (const uint8_t **)frame->data, frame->linesize, frame->format, frame->width, frame->height); break; case AVMEDIA_TYPE_AUDIO: @@ -787,7 +1077,34 @@ int ff_filter_frame(AVFilterLink *link, AVFrame *frame) } else out = frame; - return filter_frame(link, out); + while(cmd && cmd->time <= out->pts * av_q2d(link->time_base)){ + av_log(link->dst, AV_LOG_DEBUG, + "Processing command time:%f command:%s arg:%s\n", + cmd->time, cmd->command, cmd->arg); + avfilter_process_command(link->dst, cmd->command, cmd->arg, 0, 0, cmd->flags); + ff_command_queue_pop(link->dst); + cmd= link->dst->command_queue; + } + + pts = out->pts; + if (dstctx->enable_str) { + int64_t pos = av_frame_get_pkt_pos(out); + dstctx->var_values[VAR_N] = link->frame_count; + dstctx->var_values[VAR_T] = pts == AV_NOPTS_VALUE ? NAN : pts * av_q2d(link->time_base); + dstctx->var_values[VAR_W] = link->w; + dstctx->var_values[VAR_H] = link->h; + dstctx->var_values[VAR_POS] = pos == -1 ? NAN : pos; + + dstctx->is_disabled = fabs(av_expr_eval(dstctx->enable, dstctx->var_values, NULL)) < 0.5; + if (dstctx->is_disabled && + (dstctx->filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC)) + filter_frame = default_filter_frame; + } + ret = filter_frame(link, out); + link->frame_count++; + link->frame_requested = 0; + ff_update_link_current_pts(link, pts); + return ret; fail: av_frame_free(&out); @@ -795,6 +1112,78 @@ fail: return ret; } +static int ff_filter_frame_needs_framing(AVFilterLink *link, AVFrame *frame) +{ + int insamples = frame->nb_samples, inpos = 0, nb_samples; + AVFrame *pbuf = link->partial_buf; + int nb_channels = av_frame_get_channels(frame); + int ret = 0; + + link->flags |= FF_LINK_FLAG_REQUEST_LOOP; + /* Handle framing (min_samples, max_samples) */ + while (insamples) { + if (!pbuf) { + AVRational samples_tb = { 1, link->sample_rate }; + pbuf = ff_get_audio_buffer(link, link->partial_buf_size); + if (!pbuf) { + av_log(link->dst, AV_LOG_WARNING, + "Samples dropped due to memory allocation failure.\n"); + return 0; + } + av_frame_copy_props(pbuf, frame); + pbuf->pts = frame->pts; + if (pbuf->pts != AV_NOPTS_VALUE) + pbuf->pts += av_rescale_q(inpos, samples_tb, link->time_base); + pbuf->nb_samples = 0; + } + nb_samples = FFMIN(insamples, + link->partial_buf_size - pbuf->nb_samples); + av_samples_copy(pbuf->extended_data, frame->extended_data, + pbuf->nb_samples, inpos, + nb_samples, nb_channels, link->format); + inpos += nb_samples; + insamples -= nb_samples; + pbuf->nb_samples += nb_samples; + if (pbuf->nb_samples >= link->min_samples) { + ret = ff_filter_frame_framed(link, pbuf); + pbuf = NULL; + } + } + av_frame_free(&frame); + link->partial_buf = pbuf; + return ret; +} + +int ff_filter_frame(AVFilterLink *link, AVFrame *frame) +{ + FF_TPRINTF_START(NULL, filter_frame); ff_tlog_link(NULL, link, 1); ff_tlog(NULL, " "); ff_tlog_ref(NULL, frame, 1); + + /* Consistency checks */ + if (link->type == AVMEDIA_TYPE_VIDEO) { + if (strcmp(link->dst->filter->name, "scale")) { + av_assert1(frame->format == link->format); + av_assert1(frame->width == link->w); + av_assert1(frame->height == link->h); + } + } else { + av_assert1(frame->format == link->format); + av_assert1(av_frame_get_channels(frame) == link->channels); + av_assert1(frame->channel_layout == link->channel_layout); + av_assert1(frame->sample_rate == link->sample_rate); + } + + /* Go directly to actual filtering if possible */ + if (link->type == AVMEDIA_TYPE_AUDIO && + link->min_samples && + (link->partial_buf || + frame->nb_samples < link->min_samples || + frame->nb_samples > link->max_samples)) { + return ff_filter_frame_needs_framing(link, frame); + } else { + return ff_filter_frame_framed(link, frame); + } +} + const AVClass *avfilter_get_class(void) { return &avfilter_class; |