making act segmenter

1 files changed, 0 insertions, 392 deletions

diff --git a/ffmpeg1/libavformat/nuv.c b/ffmpeg1/libavformat/nuv.c
deleted file mode 100644
index fc9e916..0000000
--- a/ffmpeg1/libavformat/nuv.c
+++ /dev/null
@@ -1,392 +0,0 @@
-/*
- * NuppelVideo demuxer.
- * Copyright (c) 2006 Reimar Doeffinger
- *
- * 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
- */
-
-#include "libavutil/channel_layout.h"
-#include "libavutil/intreadwrite.h"
-#include "libavutil/intfloat.h"
-#include "avformat.h"
-#include "internal.h"
-#include "riff.h"
-
-static const AVCodecTag nuv_audio_tags[] = {
-    { AV_CODEC_ID_PCM_S16LE, MKTAG('R', 'A', 'W', 'A') },
-    { AV_CODEC_ID_MP3,       MKTAG('L', 'A', 'M', 'E') },
-    { AV_CODEC_ID_NONE,      0 },
-};
-
-typedef struct {
-    int v_id;
-    int a_id;
-    int rtjpg_video;
-} NUVContext;
-
-typedef enum {
-    NUV_VIDEO     = 'V',
-    NUV_EXTRADATA = 'D',
-    NUV_AUDIO     = 'A',
-    NUV_SEEKP     = 'R',
-    NUV_MYTHEXT   = 'X'
-} nuv_frametype;
-
-static int nuv_probe(AVProbeData *p)
-{
-    if (!memcmp(p->buf, "NuppelVideo", 12))
-        return AVPROBE_SCORE_MAX;
-    if (!memcmp(p->buf, "MythTVVideo", 12))
-        return AVPROBE_SCORE_MAX;
-    return 0;
-}
-
-/// little macro to sanitize packet size
-#define PKTSIZE(s) (s &  0xffffff)
-
-/**
- * @brief read until we found all data needed for decoding
- * @param vst video stream of which to change parameters
- * @param ast video stream of which to change parameters
- * @param myth set if this is a MythTVVideo format file
- * @return 0 or AVERROR code
- */
-static int get_codec_data(AVIOContext *pb, AVStream *vst,
-                          AVStream *ast, int myth)
-{
-    nuv_frametype frametype;
-
-    if (!vst && !myth)
-        return 1; // no codec data needed
-    while (!url_feof(pb)) {
-        int size, subtype;
-
-        frametype = avio_r8(pb);
-        switch (frametype) {
-        case NUV_EXTRADATA:
-            subtype = avio_r8(pb);
-            avio_skip(pb, 6);
-            size = PKTSIZE(avio_rl32(pb));
-            if (vst && subtype == 'R') {
-                if (vst->codec->extradata) {
-                    av_freep(&vst->codec->extradata);
-                    vst->codec->extradata_size = 0;
-                }
-                vst->codec->extradata = av_malloc(size);
-                if (!vst->codec->extradata)
-                    return AVERROR(ENOMEM);
-                vst->codec->extradata_size = size;
-                avio_read(pb, vst->codec->extradata, size);
-                size = 0;
-                if (!myth)
-                    return 0;
-            }
-            break;
-        case NUV_MYTHEXT:
-            avio_skip(pb, 7);
-            size = PKTSIZE(avio_rl32(pb));
-            if (size != 128 * 4)
-                break;
-            avio_rl32(pb); // version
-            if (vst) {
-                vst->codec->codec_tag = avio_rl32(pb);
-                vst->codec->codec_id =
-                    ff_codec_get_id(ff_codec_bmp_tags, vst->codec->codec_tag);
-                if (vst->codec->codec_tag == MKTAG('R', 'J', 'P', 'G'))
-                    vst->codec->codec_id = AV_CODEC_ID_NUV;
-            } else
-                avio_skip(pb, 4);
-
-            if (ast) {
-                int id;
-
-                ast->codec->codec_tag             = avio_rl32(pb);
-                ast->codec->sample_rate           = avio_rl32(pb);
-                ast->codec->bits_per_coded_sample = avio_rl32(pb);
-                ast->codec->channels              = avio_rl32(pb);
-                ast->codec->channel_layout        = 0;
-
-                id = ff_wav_codec_get_id(ast->codec->codec_tag,
-                                         ast->codec->bits_per_coded_sample);
-                if (id == AV_CODEC_ID_NONE) {
-                    id = ff_codec_get_id(nuv_audio_tags, ast->codec->codec_tag);
-                    if (id == AV_CODEC_ID_PCM_S16LE)
-                        id = ff_get_pcm_codec_id(ast->codec->bits_per_coded_sample,
-                                                 0, 0, ~1);
-                }
-                ast->codec->codec_id = id;
-
-                ast->need_parsing = AVSTREAM_PARSE_FULL;
-            } else
-                avio_skip(pb, 4 * 4);
-
-            size -= 6 * 4;
-            avio_skip(pb, size);
-            return 0;
-        case NUV_SEEKP:
-            size = 11;
-            break;
-        default:
-            avio_skip(pb, 7);
-            size = PKTSIZE(avio_rl32(pb));
-            break;
-        }
-        avio_skip(pb, size);
-    }
-
-    return 0;
-}
-
-static int nuv_header(AVFormatContext *s)
-{
-    NUVContext *ctx = s->priv_data;
-    AVIOContext *pb = s->pb;
-    char id_string[12];
-    double aspect, fps;
-    int is_mythtv, width, height, v_packs, a_packs, ret;
-    AVStream *vst = NULL, *ast = NULL;
-
-    avio_read(pb, id_string, 12);
-    is_mythtv = !memcmp(id_string, "MythTVVideo", 12);
-    avio_skip(pb, 5);       // version string
-    avio_skip(pb, 3);       // padding
-    width  = avio_rl32(pb);
-    height = avio_rl32(pb);
-    avio_rl32(pb);          // unused, "desiredwidth"
-    avio_rl32(pb);          // unused, "desiredheight"
-    avio_r8(pb);            // 'P' == progressive, 'I' == interlaced
-    avio_skip(pb, 3);       // padding
-    aspect = av_int2double(avio_rl64(pb));
-    if (aspect > 0.9999 && aspect < 1.0001)
-        aspect = 4.0 / 3.0;
-    fps = av_int2double(avio_rl64(pb));
-
-    // number of packets per stream type, -1 means unknown, e.g. streaming
-    v_packs = avio_rl32(pb);
-    a_packs = avio_rl32(pb);
-    avio_rl32(pb); // text
-
-    avio_rl32(pb); // keyframe distance (?)
-
-    if (v_packs) {
-        vst = avformat_new_stream(s, NULL);
-        if (!vst)
-            return AVERROR(ENOMEM);
-        ctx->v_id = vst->index;
-
-        vst->codec->codec_type            = AVMEDIA_TYPE_VIDEO;
-        vst->codec->codec_id              = AV_CODEC_ID_NUV;
-        vst->codec->width                 = width;
-        vst->codec->height                = height;
-        vst->codec->bits_per_coded_sample = 10;
-        vst->sample_aspect_ratio          = av_d2q(aspect * height / width,
-                                                   10000);
-#if FF_API_R_FRAME_RATE
-        vst->r_frame_rate =
-#endif
-        vst->avg_frame_rate = av_d2q(fps, 60000);
-        avpriv_set_pts_info(vst, 32, 1, 1000);
-    } else
-        ctx->v_id = -1;
-
-    if (a_packs) {
-        ast = avformat_new_stream(s, NULL);
-        if (!ast)
-            return AVERROR(ENOMEM);
-        ctx->a_id = ast->index;
-
-        ast->codec->codec_type            = AVMEDIA_TYPE_AUDIO;
-        ast->codec->codec_id              = AV_CODEC_ID_PCM_S16LE;
-        ast->codec->channels              = 2;
-        ast->codec->channel_layout        = AV_CH_LAYOUT_STEREO;
-        ast->codec->sample_rate           = 44100;
-        ast->codec->bit_rate              = 2 * 2 * 44100 * 8;
-        ast->codec->block_align           = 2 * 2;
-        ast->codec->bits_per_coded_sample = 16;
-        avpriv_set_pts_info(ast, 32, 1, 1000);
-    } else
-        ctx->a_id = -1;
-
-    if ((ret = get_codec_data(pb, vst, ast, is_mythtv)) < 0)
-        return ret;
-
-    ctx->rtjpg_video = vst && vst->codec->codec_id == AV_CODEC_ID_NUV;
-
-    return 0;
-}
-
-#define HDRSIZE 12
-
-static int nuv_packet(AVFormatContext *s, AVPacket *pkt)
-{
-    NUVContext *ctx = s->priv_data;
-    AVIOContext *pb = s->pb;
-    uint8_t hdr[HDRSIZE];
-    nuv_frametype frametype;
-    int ret, size;
-
-    while (!url_feof(pb)) {
-        int copyhdrsize = ctx->rtjpg_video ? HDRSIZE : 0;
-        uint64_t pos    = avio_tell(pb);
-
-        ret = avio_read(pb, hdr, HDRSIZE);
-        if (ret < HDRSIZE)
-            return ret < 0 ? ret : AVERROR(EIO);
-
-        frametype = hdr[0];
-        size      = PKTSIZE(AV_RL32(&hdr[8]));
-
-        switch (frametype) {
-        case NUV_EXTRADATA:
-            if (!ctx->rtjpg_video) {
-                avio_skip(pb, size);
-                break;
-            }
-        case NUV_VIDEO:
-            if (ctx->v_id < 0) {
-                av_log(s, AV_LOG_ERROR, "Video packet in file without video stream!\n");
-                avio_skip(pb, size);
-                break;
-            }
-            ret = av_new_packet(pkt, copyhdrsize + size);
-            if (ret < 0)
-                return ret;
-
-            pkt->pos          = pos;
-            pkt->flags       |= hdr[2] == 0 ? AV_PKT_FLAG_KEY : 0;
-            pkt->pts          = AV_RL32(&hdr[4]);
-            pkt->stream_index = ctx->v_id;
-            memcpy(pkt->data, hdr, copyhdrsize);
-            ret = avio_read(pb, pkt->data + copyhdrsize, size);
-            if (ret < 0) {
-                av_free_packet(pkt);
-                return ret;
-            }
-            if (ret < size)
-                av_shrink_packet(pkt, copyhdrsize + ret);
-            return 0;
-        case NUV_AUDIO:
-            if (ctx->a_id < 0) {
-                av_log(s, AV_LOG_ERROR, "Audio packet in file without audio stream!\n");
-                avio_skip(pb, size);
-                break;
-            }
-            ret               = av_get_packet(pb, pkt, size);
-            pkt->flags       |= AV_PKT_FLAG_KEY;
-            pkt->pos          = pos;
-            pkt->pts          = AV_RL32(&hdr[4]);
-            pkt->stream_index = ctx->a_id;
-            if (ret < 0)
-                return ret;
-            return 0;
-        case NUV_SEEKP:
-            // contains no data, size value is invalid
-            break;
-        default:
-            avio_skip(pb, size);
-            break;
-        }
-    }
-
-    return AVERROR(EIO);
-}
-
-/**
- * \brief looks for the string RTjjjjjjjjjj in the stream too resync reading
- * \return 1 if the syncword is found 0 otherwise.
- */
-static int nuv_resync(AVFormatContext *s, int64_t pos_limit) {
-    AVIOContext *pb = s->pb;
-    uint32_t tag = 0;
-    while(!url_feof(pb) && avio_tell(pb) < pos_limit) {
-        tag = (tag << 8) | avio_r8(pb);
-        if (tag                  == MKBETAG('R','T','j','j') &&
-           (tag = avio_rb32(pb)) == MKBETAG('j','j','j','j') &&
-           (tag = avio_rb32(pb)) == MKBETAG('j','j','j','j'))
-            return 1;
-    }
-    return 0;
-}
-
-/**
- * \brief attempts to read a timestamp from stream at the given stream position
- * \return timestamp if successful and AV_NOPTS_VALUE if failure
- */
-static int64_t nuv_read_dts(AVFormatContext *s, int stream_index,
-                            int64_t *ppos, int64_t pos_limit)
-{
-    NUVContext *ctx = s->priv_data;
-    AVIOContext *pb = s->pb;
-    uint8_t hdr[HDRSIZE];
-    nuv_frametype frametype;
-    int size, key, idx;
-    int64_t pos, dts;
-
-    if (avio_seek(pb, *ppos, SEEK_SET) < 0)
-        return AV_NOPTS_VALUE;
-
-    if (!nuv_resync(s, pos_limit))
-        return AV_NOPTS_VALUE;
-
-    while (!url_feof(pb) && avio_tell(pb) < pos_limit) {
-        if (avio_read(pb, hdr, HDRSIZE) < HDRSIZE)
-            return AV_NOPTS_VALUE;
-        frametype = hdr[0];
-        size = PKTSIZE(AV_RL32(&hdr[8]));
-        switch (frametype) {
-            case NUV_SEEKP:
-                break;
-            case NUV_AUDIO:
-            case NUV_VIDEO:
-                if (frametype == NUV_VIDEO) {
-                    idx = ctx->v_id;
-                    key = hdr[2] == 0;
-                } else {
-                    idx = ctx->a_id;
-                    key = 1;
-                }
-                if (stream_index == idx) {
-
-                    pos = avio_tell(s->pb) - HDRSIZE;
-                    dts = AV_RL32(&hdr[4]);
-
-                    // TODO - add general support in av_gen_search, so it adds positions after reading timestamps
-                    av_add_index_entry(s->streams[stream_index], pos, dts, size + HDRSIZE, 0,
-                            key ? AVINDEX_KEYFRAME : 0);
-
-                    *ppos = pos;
-                    return dts;
-                }
-            default:
-                avio_skip(pb, size);
-                break;
-        }
-    }
-    return AV_NOPTS_VALUE;
-}
-
-
-AVInputFormat ff_nuv_demuxer = {
-    .name           = "nuv",
-    .long_name      = NULL_IF_CONFIG_SMALL("NuppelVideo"),
-    .priv_data_size = sizeof(NUVContext),
-    .read_probe     = nuv_probe,
-    .read_header    = nuv_header,
-    .read_packet    = nuv_packet,
-    .read_timestamp = nuv_read_dts,
-    .flags          = AVFMT_GENERIC_INDEX,
-};