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Diffstat (limited to 'contrib/ffmpeg/libavformat/nuv.c')
-rw-r--r--contrib/ffmpeg/libavformat/nuv.c241
1 files changed, 0 insertions, 241 deletions
diff --git a/contrib/ffmpeg/libavformat/nuv.c b/contrib/ffmpeg/libavformat/nuv.c
deleted file mode 100644
index 7e04222ee..000000000
--- a/contrib/ffmpeg/libavformat/nuv.c
+++ /dev/null
@@ -1,241 +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 "avformat.h"
-#include "riff.h"
-
-typedef struct {
- int v_id;
- int a_id;
-} NUVContext;
-
-typedef enum {
- NUV_VIDEO = 'V',
- NUV_EXTRADATA = 'D',
- NUV_AUDIO = 'A',
- NUV_SEEKP = 'R',
- NUV_MYTHEXT = 'X'
-} frametype_t;
-
-static int nuv_probe(AVProbeData *p) {
- if (p->buf_size < 12)
- return 0;
- 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 1 if all required codec data was found
- */
-static int get_codec_data(ByteIOContext *pb, AVStream *vst,
- AVStream *ast, int myth) {
- frametype_t frametype;
- if (!vst && !myth)
- return 1; // no codec data needed
- while (!url_feof(pb)) {
- int size, subtype;
- frametype = get_byte(pb);
- switch (frametype) {
- case NUV_EXTRADATA:
- subtype = get_byte(pb);
- url_fskip(pb, 6);
- size = PKTSIZE(get_le32(pb));
- if (vst && subtype == 'R') {
- vst->codec->extradata_size = size;
- vst->codec->extradata = av_malloc(size);
- get_buffer(pb, vst->codec->extradata, size);
- size = 0;
- if (!myth)
- return 1;
- }
- break;
- case NUV_MYTHEXT:
- url_fskip(pb, 7);
- size = PKTSIZE(get_le32(pb));
- if (size != 128 * 4)
- break;
- get_le32(pb); // version
- if (vst) {
- vst->codec->codec_tag = get_le32(pb);
- vst->codec->codec_id =
- codec_get_id(codec_bmp_tags, vst->codec->codec_tag);
- } else
- url_fskip(pb, 4);
-
- if (ast) {
- ast->codec->codec_tag = get_le32(pb);
- ast->codec->sample_rate = get_le32(pb);
- ast->codec->bits_per_sample = get_le32(pb);
- ast->codec->channels = get_le32(pb);
- ast->codec->codec_id =
- wav_codec_get_id(ast->codec->codec_tag,
- ast->codec->bits_per_sample);
- } else
- url_fskip(pb, 4 * 4);
-
- size -= 6 * 4;
- url_fskip(pb, size);
- return 1;
- case NUV_SEEKP:
- size = 11;
- break;
- default:
- url_fskip(pb, 7);
- size = PKTSIZE(get_le32(pb));
- break;
- }
- url_fskip(pb, size);
- }
- return 0;
-}
-
-static int nuv_header(AVFormatContext *s, AVFormatParameters *ap) {
- NUVContext *ctx = (NUVContext *)s->priv_data;
- ByteIOContext *pb = &s->pb;
- char id_string[12], version_string[5];
- double aspect, fps;
- int is_mythtv, width, height, v_packs, a_packs;
- int stream_nr = 0;
- AVStream *vst = NULL, *ast = NULL;
- get_buffer(pb, id_string, 12);
- is_mythtv = !memcmp(id_string, "MythTVVideo", 12);
- get_buffer(pb, version_string, 5);
- url_fskip(pb, 3); // padding
- width = get_le32(pb);
- height = get_le32(pb);
- get_le32(pb); // unused, "desiredwidth"
- get_le32(pb); // unused, "desiredheight"
- get_byte(pb); // 'P' == progressive, 'I' == interlaced
- url_fskip(pb, 3); // padding
- aspect = av_int2dbl(get_le64(pb));
- fps = av_int2dbl(get_le64(pb));
-
- // number of packets per stream type, -1 means unknown, e.g. streaming
- v_packs = get_le32(pb);
- a_packs = get_le32(pb);
- get_le32(pb); // text
-
- get_le32(pb); // keyframe distance (?)
-
- if (v_packs) {
- ctx->v_id = stream_nr++;
- vst = av_new_stream(s, ctx->v_id);
- vst->codec->codec_type = CODEC_TYPE_VIDEO;
- vst->codec->codec_id = CODEC_ID_NUV;
- vst->codec->codec_tag = MKTAG('R', 'J', 'P', 'G');
- vst->codec->width = width;
- vst->codec->height = height;
- vst->codec->bits_per_sample = 10;
- vst->codec->sample_aspect_ratio = av_d2q(aspect, 10000);
- vst->r_frame_rate = av_d2q(fps, 60000);
- av_set_pts_info(vst, 32, 1, 1000);
- } else
- ctx->v_id = -1;
-
- if (a_packs) {
- ctx->a_id = stream_nr++;
- ast = av_new_stream(s, ctx->a_id);
- ast->codec->codec_type = CODEC_TYPE_AUDIO;
- ast->codec->codec_id = CODEC_ID_PCM_S16LE;
- ast->codec->channels = 2;
- ast->codec->sample_rate = 44100;
- ast->codec->bit_rate = 2 * 2 * 44100 * 8;
- ast->codec->block_align = 2 * 2;
- ast->codec->bits_per_sample = 16;
- av_set_pts_info(ast, 32, 1, 1000);
- } else
- ctx->a_id = -1;
-
- get_codec_data(pb, vst, ast, is_mythtv);
- return 0;
-}
-
-#define HDRSIZE 12
-
-static int nuv_packet(AVFormatContext *s, AVPacket *pkt) {
- NUVContext *ctx = (NUVContext *)s->priv_data;
- ByteIOContext *pb = &s->pb;
- uint8_t hdr[HDRSIZE];
- frametype_t frametype;
- int ret, size;
- while (!url_feof(pb)) {
- ret = get_buffer(pb, hdr, HDRSIZE);
- if (ret <= 0)
- return ret ? ret : -1;
- frametype = hdr[0];
- size = PKTSIZE(AV_RL32(&hdr[8]));
- switch (frametype) {
- case NUV_VIDEO:
- case NUV_EXTRADATA:
- if (ctx->v_id < 0) {
- av_log(s, AV_LOG_ERROR, "Video packet in file without video stream!\n");
- url_fskip(pb, size);
- break;
- }
- ret = av_new_packet(pkt, HDRSIZE + size);
- if (ret < 0)
- return ret;
- pkt->pos = url_ftell(pb);
- pkt->pts = AV_RL32(&hdr[4]);
- pkt->stream_index = ctx->v_id;
- memcpy(pkt->data, hdr, HDRSIZE);
- ret = get_buffer(pb, pkt->data + HDRSIZE, size);
- return ret;
- case NUV_AUDIO:
- if (ctx->a_id < 0) {
- av_log(s, AV_LOG_ERROR, "Audio packet in file without audio stream!\n");
- url_fskip(pb, size);
- break;
- }
- ret = av_get_packet(pb, pkt, size);
- pkt->pts = AV_RL32(&hdr[4]);
- pkt->stream_index = ctx->a_id;
- return ret;
- case NUV_SEEKP:
- // contains no data, size value is invalid
- break;
- default:
- url_fskip(pb, size);
- break;
- }
- }
- return AVERROR_IO;
-}
-
-AVInputFormat nuv_demuxer = {
- "nuv",
- "NuppelVideo format",
- sizeof(NUVContext),
- nuv_probe,
- nuv_header,
- nuv_packet,
- NULL,
- NULL,
-};
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