making act segmenter

1 files changed, 0 insertions, 439 deletions

diff --git a/ffmpeg1/libavdevice/lavfi.c b/ffmpeg1/libavdevice/lavfi.c
deleted file mode 100644
index 159832a..0000000
--- a/ffmpeg1/libavdevice/lavfi.c
+++ /dev/null
@@ -1,439 +0,0 @@
-/*
- * Copyright (c) 2011 Stefano Sabatini
- *
- * This file is part of FFmpeg.
- *
- * 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.
- *
- * 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * libavfilter virtual input device
- */
-
-/* #define DEBUG */
-
-#include <float.h>              /* DBL_MIN, DBL_MAX */
-
-#include "libavutil/bprint.h"
-#include "libavutil/channel_layout.h"
-#include "libavutil/file.h"
-#include "libavutil/log.h"
-#include "libavutil/mem.h"
-#include "libavutil/opt.h"
-#include "libavutil/parseutils.h"
-#include "libavutil/pixdesc.h"
-#include "libavfilter/avfilter.h"
-#include "libavfilter/avfiltergraph.h"
-#include "libavfilter/buffersink.h"
-#include "libavformat/internal.h"
-#include "avdevice.h"
-
-typedef struct {
-    AVClass *class;          ///< class for private options
-    char          *graph_str;
-    char          *graph_filename;
-    char          *dump_graph;
-    AVFilterGraph *graph;
-    AVFilterContext **sinks;
-    int *sink_stream_map;
-    int *sink_eof;
-    int *stream_sink_map;
-    AVFrame *decoded_frame;
-} LavfiContext;
-
-static int *create_all_formats(int n)
-{
-    int i, j, *fmts, count = 0;
-
-    for (i = 0; i < n; i++) {
-        const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(i);
-        if (!(desc->flags & PIX_FMT_HWACCEL))
-            count++;
-    }
-
-    if (!(fmts = av_malloc((count+1) * sizeof(int))))
-        return NULL;
-    for (j = 0, i = 0; i < n; i++) {
-        const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(i);
-        if (!(desc->flags & PIX_FMT_HWACCEL))
-            fmts[j++] = i;
-    }
-    fmts[j] = -1;
-    return fmts;
-}
-
-av_cold static int lavfi_read_close(AVFormatContext *avctx)
-{
-    LavfiContext *lavfi = avctx->priv_data;
-
-    av_freep(&lavfi->sink_stream_map);
-    av_freep(&lavfi->sink_eof);
-    av_freep(&lavfi->stream_sink_map);
-    av_freep(&lavfi->sinks);
-    avfilter_graph_free(&lavfi->graph);
-    av_frame_free(&lavfi->decoded_frame);
-
-    return 0;
-}
-
-av_cold static int lavfi_read_header(AVFormatContext *avctx)
-{
-    LavfiContext *lavfi = avctx->priv_data;
-    AVFilterInOut *input_links = NULL, *output_links = NULL, *inout;
-    AVFilter *buffersink, *abuffersink;
-    int *pix_fmts = create_all_formats(AV_PIX_FMT_NB);
-    enum AVMediaType type;
-    int ret = 0, i, n;
-
-#define FAIL(ERR) { ret = ERR; goto end; }
-
-    if (!pix_fmts)
-        FAIL(AVERROR(ENOMEM));
-
-    avfilter_register_all();
-
-    buffersink = avfilter_get_by_name("buffersink");
-    abuffersink = avfilter_get_by_name("abuffersink");
-
-    if (lavfi->graph_filename && lavfi->graph_str) {
-        av_log(avctx, AV_LOG_ERROR,
-               "Only one of the graph or graph_file options must be specified\n");
-        FAIL(AVERROR(EINVAL));
-    }
-
-    if (lavfi->graph_filename) {
-        uint8_t *file_buf, *graph_buf;
-        size_t file_bufsize;
-        ret = av_file_map(lavfi->graph_filename,
-                          &file_buf, &file_bufsize, 0, avctx);
-        if (ret < 0)
-            goto end;
-
-        /* create a 0-terminated string based on the read file */
-        graph_buf = av_malloc(file_bufsize + 1);
-        if (!graph_buf) {
-            av_file_unmap(file_buf, file_bufsize);
-            FAIL(AVERROR(ENOMEM));
-        }
-        memcpy(graph_buf, file_buf, file_bufsize);
-        graph_buf[file_bufsize] = 0;
-        av_file_unmap(file_buf, file_bufsize);
-        lavfi->graph_str = graph_buf;
-    }
-
-    if (!lavfi->graph_str)
-        lavfi->graph_str = av_strdup(avctx->filename);
-
-    /* parse the graph, create a stream for each open output */
-    if (!(lavfi->graph = avfilter_graph_alloc()))
-        FAIL(AVERROR(ENOMEM));
-
-    if ((ret = avfilter_graph_parse(lavfi->graph, lavfi->graph_str,
-                                    &input_links, &output_links, avctx)) < 0)
-        FAIL(ret);
-
-    if (input_links) {
-        av_log(avctx, AV_LOG_ERROR,
-               "Open inputs in the filtergraph are not acceptable\n");
-        FAIL(AVERROR(EINVAL));
-    }
-
-    /* count the outputs */
-    for (n = 0, inout = output_links; inout; n++, inout = inout->next);
-
-    if (!(lavfi->sink_stream_map = av_malloc(sizeof(int) * n)))
-        FAIL(AVERROR(ENOMEM));
-    if (!(lavfi->sink_eof = av_mallocz(sizeof(int) * n)))
-        FAIL(AVERROR(ENOMEM));
-    if (!(lavfi->stream_sink_map = av_malloc(sizeof(int) * n)))
-        FAIL(AVERROR(ENOMEM));
-
-    for (i = 0; i < n; i++)
-        lavfi->stream_sink_map[i] = -1;
-
-    /* parse the output link names - they need to be of the form out0, out1, ...
-     * create a mapping between them and the streams */
-    for (i = 0, inout = output_links; inout; i++, inout = inout->next) {
-        int stream_idx;
-        if (!strcmp(inout->name, "out"))
-            stream_idx = 0;
-        else if (sscanf(inout->name, "out%d\n", &stream_idx) != 1) {
-            av_log(avctx,  AV_LOG_ERROR,
-                   "Invalid outpad name '%s'\n", inout->name);
-            FAIL(AVERROR(EINVAL));
-        }
-
-        if ((unsigned)stream_idx >= n) {
-            av_log(avctx, AV_LOG_ERROR,
-                   "Invalid index was specified in output '%s', "
-                   "must be a non-negative value < %d\n",
-                   inout->name, n);
-            FAIL(AVERROR(EINVAL));
-        }
-
-        /* is an audio or video output? */
-        type = inout->filter_ctx->output_pads[inout->pad_idx].type;
-        if (type != AVMEDIA_TYPE_VIDEO && type != AVMEDIA_TYPE_AUDIO) {
-            av_log(avctx,  AV_LOG_ERROR,
-                   "Output '%s' is not a video or audio output, not yet supported\n", inout->name);
-            FAIL(AVERROR(EINVAL));
-        }
-
-        if (lavfi->stream_sink_map[stream_idx] != -1) {
-            av_log(avctx,  AV_LOG_ERROR,
-                   "An output with stream index %d was already specified\n",
-                   stream_idx);
-            FAIL(AVERROR(EINVAL));
-        }
-        lavfi->sink_stream_map[i] = stream_idx;
-        lavfi->stream_sink_map[stream_idx] = i;
-    }
-
-    /* for each open output create a corresponding stream */
-    for (i = 0, inout = output_links; inout; i++, inout = inout->next) {
-        AVStream *st;
-        if (!(st = avformat_new_stream(avctx, NULL)))
-            FAIL(AVERROR(ENOMEM));
-        st->id = i;
-    }
-
-    /* create a sink for each output and connect them to the graph */
-    lavfi->sinks = av_malloc(sizeof(AVFilterContext *) * avctx->nb_streams);
-    if (!lavfi->sinks)
-        FAIL(AVERROR(ENOMEM));
-
-    for (i = 0, inout = output_links; inout; i++, inout = inout->next) {
-        AVFilterContext *sink;
-
-        type = inout->filter_ctx->output_pads[inout->pad_idx].type;
-
-        if (type == AVMEDIA_TYPE_VIDEO && ! buffersink ||
-            type == AVMEDIA_TYPE_AUDIO && ! abuffersink) {
-                av_log(avctx, AV_LOG_ERROR, "Missing required buffersink filter, aborting.\n");
-                FAIL(AVERROR_FILTER_NOT_FOUND);
-        }
-
-        if (type == AVMEDIA_TYPE_VIDEO) {
-            AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
-
-            buffersink_params->pixel_fmts = pix_fmts;
-            ret = avfilter_graph_create_filter(&sink, buffersink,
-                                               inout->name, NULL,
-                                               buffersink_params, lavfi->graph);
-            av_freep(&buffersink_params);
-
-            if (ret < 0)
-                goto end;
-        } else if (type == AVMEDIA_TYPE_AUDIO) {
-            enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_U8,
-                                                  AV_SAMPLE_FMT_S16,
-                                                  AV_SAMPLE_FMT_S32,
-                                                  AV_SAMPLE_FMT_FLT,
-                                                  AV_SAMPLE_FMT_DBL, -1 };
-            AVABufferSinkParams *abuffersink_params = av_abuffersink_params_alloc();
-            abuffersink_params->sample_fmts = sample_fmts;
-
-            ret = avfilter_graph_create_filter(&sink, abuffersink,
-                                               inout->name, NULL,
-                                               abuffersink_params, lavfi->graph);
-            av_free(abuffersink_params);
-            if (ret < 0)
-                goto end;
-        }
-
-        lavfi->sinks[i] = sink;
-        if ((ret = avfilter_link(inout->filter_ctx, inout->pad_idx, sink, 0)) < 0)
-            FAIL(ret);
-    }
-
-    /* configure the graph */
-    if ((ret = avfilter_graph_config(lavfi->graph, avctx)) < 0)
-        FAIL(ret);
-
-    if (lavfi->dump_graph) {
-        char *dump = avfilter_graph_dump(lavfi->graph, lavfi->dump_graph);
-        fputs(dump, stderr);
-        fflush(stderr);
-        av_free(dump);
-    }
-
-    /* fill each stream with the information in the corresponding sink */
-    for (i = 0; i < avctx->nb_streams; i++) {
-        AVFilterLink *link = lavfi->sinks[lavfi->stream_sink_map[i]]->inputs[0];
-        AVStream *st = avctx->streams[i];
-        st->codec->codec_type = link->type;
-        avpriv_set_pts_info(st, 64, link->time_base.num, link->time_base.den);
-        if (link->type == AVMEDIA_TYPE_VIDEO) {
-            st->codec->codec_id   = AV_CODEC_ID_RAWVIDEO;
-            st->codec->pix_fmt    = link->format;
-            st->codec->time_base  = link->time_base;
-            st->codec->width      = link->w;
-            st->codec->height     = link->h;
-            st       ->sample_aspect_ratio =
-            st->codec->sample_aspect_ratio = link->sample_aspect_ratio;
-            avctx->probesize = FFMAX(avctx->probesize,
-                                     link->w * link->h *
-                                     av_get_padded_bits_per_pixel(av_pix_fmt_desc_get(link->format)) *
-                                     30);
-        } else if (link->type == AVMEDIA_TYPE_AUDIO) {
-            st->codec->codec_id    = av_get_pcm_codec(link->format, -1);
-            st->codec->channels    = av_get_channel_layout_nb_channels(link->channel_layout);
-            st->codec->sample_fmt  = link->format;
-            st->codec->sample_rate = link->sample_rate;
-            st->codec->time_base   = link->time_base;
-            st->codec->channel_layout = link->channel_layout;
-            if (st->codec->codec_id == AV_CODEC_ID_NONE)
-                av_log(avctx, AV_LOG_ERROR,
-                       "Could not find PCM codec for sample format %s.\n",
-                       av_get_sample_fmt_name(link->format));
-        }
-    }
-
-    if (!(lavfi->decoded_frame = av_frame_alloc()))
-        FAIL(AVERROR(ENOMEM));
-
-end:
-    av_free(pix_fmts);
-    avfilter_inout_free(&input_links);
-    avfilter_inout_free(&output_links);
-    if (ret < 0)
-        lavfi_read_close(avctx);
-    return ret;
-}
-
-static int lavfi_read_packet(AVFormatContext *avctx, AVPacket *pkt)
-{
-    LavfiContext *lavfi = avctx->priv_data;
-    double min_pts = DBL_MAX;
-    int stream_idx, min_pts_sink_idx = 0;
-    AVFrame *frame = lavfi->decoded_frame;
-    AVPicture pict;
-    AVDictionary *frame_metadata;
-    int ret, i;
-    int size = 0;
-
-    /* iterate through all the graph sinks. Select the sink with the
-     * minimum PTS */
-    for (i = 0; i < avctx->nb_streams; i++) {
-        AVRational tb = lavfi->sinks[i]->inputs[0]->time_base;
-        double d;
-        int ret;
-
-        if (lavfi->sink_eof[i])
-            continue;
-
-        ret = av_buffersink_get_frame_flags(lavfi->sinks[i], frame,
-                                            AV_BUFFERSINK_FLAG_PEEK);
-        if (ret == AVERROR_EOF) {
-            av_dlog(avctx, "EOF sink_idx:%d\n", i);
-            lavfi->sink_eof[i] = 1;
-            continue;
-        } else if (ret < 0)
-            return ret;
-        d = av_rescale_q(frame->pts, tb, AV_TIME_BASE_Q);
-        av_dlog(avctx, "sink_idx:%d time:%f\n", i, d);
-        av_frame_unref(frame);
-
-        if (d < min_pts) {
-            min_pts = d;
-            min_pts_sink_idx = i;
-        }
-    }
-    if (min_pts == DBL_MAX)
-        return AVERROR_EOF;
-
-    av_dlog(avctx, "min_pts_sink_idx:%i\n", min_pts_sink_idx);
-
-    av_buffersink_get_frame_flags(lavfi->sinks[min_pts_sink_idx], frame, 0);
-    stream_idx = lavfi->sink_stream_map[min_pts_sink_idx];
-
-    if (frame->width /* FIXME best way of testing a video */) {
-        size = avpicture_get_size(frame->format, frame->width, frame->height);
-        if ((ret = av_new_packet(pkt, size)) < 0)
-            return ret;
-
-        memcpy(pict.data,     frame->data,     4*sizeof(frame->data[0]));
-        memcpy(pict.linesize, frame->linesize, 4*sizeof(frame->linesize[0]));
-
-        avpicture_layout(&pict, frame->format, frame->width, frame->height,
-                         pkt->data, size);
-    } else if (av_frame_get_channels(frame) /* FIXME test audio */) {
-        size = frame->nb_samples * av_get_bytes_per_sample(frame->format) *
-                                   av_frame_get_channels(frame);
-        if ((ret = av_new_packet(pkt, size)) < 0)
-            return ret;
-        memcpy(pkt->data, frame->data[0], size);
-    }
-
-    frame_metadata = av_frame_get_metadata(frame);
-    if (frame_metadata) {
-        uint8_t *metadata;
-        AVDictionaryEntry *e = NULL;
-        AVBPrint meta_buf;
-
-        av_bprint_init(&meta_buf, 0, AV_BPRINT_SIZE_UNLIMITED);
-        while ((e = av_dict_get(frame_metadata, "", e, AV_DICT_IGNORE_SUFFIX))) {
-            av_bprintf(&meta_buf, "%s", e->key);
-            av_bprint_chars(&meta_buf, '\0', 1);
-            av_bprintf(&meta_buf, "%s", e->value);
-            av_bprint_chars(&meta_buf, '\0', 1);
-        }
-        if (!av_bprint_is_complete(&meta_buf) ||
-            !(metadata = av_packet_new_side_data(pkt, AV_PKT_DATA_STRINGS_METADATA,
-                                                 meta_buf.len))) {
-            av_bprint_finalize(&meta_buf, NULL);
-            return AVERROR(ENOMEM);
-        }
-        memcpy(metadata, meta_buf.str, meta_buf.len);
-        av_bprint_finalize(&meta_buf, NULL);
-    }
-
-    pkt->stream_index = stream_idx;
-    pkt->pts = frame->pts;
-    pkt->pos = av_frame_get_pkt_pos(frame);
-    pkt->size = size;
-    av_frame_unref(frame);
-    return size;
-}
-
-#define OFFSET(x) offsetof(LavfiContext, x)
-
-#define DEC AV_OPT_FLAG_DECODING_PARAM
-
-static const AVOption options[] = {
-    { "graph",     "set libavfilter graph", OFFSET(graph_str),  AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
-    { "graph_file","set libavfilter graph filename", OFFSET(graph_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC},
-    { "dumpgraph", "dump graph to stderr",  OFFSET(dump_graph), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
-    { NULL },
-};
-
-static const AVClass lavfi_class = {
-    .class_name = "lavfi indev",
-    .item_name  = av_default_item_name,
-    .option     = options,
-    .version    = LIBAVUTIL_VERSION_INT,
-};
-
-AVInputFormat ff_lavfi_demuxer = {
-    .name           = "lavfi",
-    .long_name      = NULL_IF_CONFIG_SMALL("Libavfilter virtual input device"),
-    .priv_data_size = sizeof(LavfiContext),
-    .read_header    = lavfi_read_header,
-    .read_packet    = lavfi_read_packet,
-    .read_close     = lavfi_read_close,
-    .flags          = AVFMT_NOFILE,
-    .priv_class     = &lavfi_class,
-};