diff options
Diffstat (limited to 'ffmpeg/libavformat/bmv.c')
| -rw-r--r-- | ffmpeg/libavformat/bmv.c | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/ffmpeg/libavformat/bmv.c b/ffmpeg/libavformat/bmv.c deleted file mode 100644 index f7a6068..0000000 --- a/ffmpeg/libavformat/bmv.c +++ /dev/null @@ -1,136 +0,0 @@ -/* - * Discworld II BMV demuxer - * Copyright (c) 2011 Konstantin Shishkov. - * - * 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 "avformat.h" -#include "internal.h" - -enum BMVFlags { - BMV_NOP = 0, - BMV_END, - BMV_DELTA, - BMV_INTRA, - - BMV_AUDIO = 0x20, -}; - -typedef struct BMVContext { - uint8_t *packet; - int size; - int get_next; - int64_t audio_pos; -} BMVContext; - -static int bmv_read_header(AVFormatContext *s) -{ - AVStream *st, *ast; - BMVContext *c = s->priv_data; - - st = avformat_new_stream(s, 0); - if (!st) - return AVERROR(ENOMEM); - st->codec->codec_type = AVMEDIA_TYPE_VIDEO; - st->codec->codec_id = AV_CODEC_ID_BMV_VIDEO; - st->codec->width = 640; - st->codec->height = 429; - st->codec->pix_fmt = AV_PIX_FMT_PAL8; - avpriv_set_pts_info(st, 16, 1, 12); - ast = avformat_new_stream(s, 0); - if (!ast) - return AVERROR(ENOMEM); - ast->codec->codec_type = AVMEDIA_TYPE_AUDIO; - ast->codec->codec_id = AV_CODEC_ID_BMV_AUDIO; - ast->codec->channels = 2; - ast->codec->channel_layout = AV_CH_LAYOUT_STEREO; - ast->codec->sample_rate = 22050; - avpriv_set_pts_info(ast, 16, 1, 22050); - - c->get_next = 1; - c->audio_pos = 0; - return 0; -} - -static int bmv_read_packet(AVFormatContext *s, AVPacket *pkt) -{ - BMVContext *c = s->priv_data; - int type, err; - - while (c->get_next) { - if (s->pb->eof_reached) - return AVERROR_EOF; - type = avio_r8(s->pb); - if (type == BMV_NOP) - continue; - if (type == BMV_END) - return AVERROR_EOF; - c->size = avio_rl24(s->pb); - if (!c->size) - return AVERROR_INVALIDDATA; - if ((err = av_reallocp(&c->packet, c->size + 1)) < 0) - return err; - c->packet[0] = type; - if (avio_read(s->pb, c->packet + 1, c->size) != c->size) - return AVERROR(EIO); - if (type & BMV_AUDIO) { - int audio_size = c->packet[1] * 65 + 1; - if (audio_size >= c->size) { - av_log(s, AV_LOG_ERROR, "Reported audio size %d is bigger than packet size (%d)\n", - audio_size, c->size); - return AVERROR_INVALIDDATA; - } - if (av_new_packet(pkt, audio_size) < 0) - return AVERROR(ENOMEM); - memcpy(pkt->data, c->packet + 1, pkt->size); - pkt->stream_index = 1; - pkt->pts = c->audio_pos; - pkt->duration = c->packet[1] * 32; - c->audio_pos += pkt->duration; - c->get_next = 0; - return pkt->size; - } else - break; - } - if (av_new_packet(pkt, c->size + 1) < 0) - return AVERROR(ENOMEM); - pkt->stream_index = 0; - c->get_next = 1; - memcpy(pkt->data, c->packet, pkt->size); - return pkt->size; -} - -static int bmv_read_close(AVFormatContext *s) -{ - BMVContext *c = s->priv_data; - - av_freep(&c->packet); - - return 0; -} - -AVInputFormat ff_bmv_demuxer = { - .name = "bmv", - .long_name = NULL_IF_CONFIG_SMALL("Discworld II BMV"), - .priv_data_size = sizeof(BMVContext), - .read_header = bmv_read_header, - .read_packet = bmv_read_packet, - .read_close = bmv_read_close, - .extensions = "bmv", -}; |