2004-10-16 22:33:57 +03:00
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/* Electronic Arts Multimedia File Demuxer
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* Copyright (c) 2004 The ffmpeg Project
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2008-07-08 16:24:13 +03:00
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* Copyright (c) 2006-2008 Peter Ross
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2004-10-16 22:33:57 +03:00
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*
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2006-10-07 18:30:46 +03:00
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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2004-10-16 22:33:57 +03:00
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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2006-10-07 18:30:46 +03:00
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* version 2.1 of the License, or (at your option) any later version.
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2004-10-16 22:33:57 +03:00
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*
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2006-10-07 18:30:46 +03:00
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* FFmpeg is distributed in the hope that it will be useful,
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2004-10-16 22:33:57 +03:00
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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2006-10-07 18:30:46 +03:00
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* License along with FFmpeg; if not, write to the Free Software
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2006-01-13 00:43:26 +02:00
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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2004-10-16 22:33:57 +03:00
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*/
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/**
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* @file electronicarts.c
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* Electronic Arts Multimedia file demuxer (WVE/UV2/etc.)
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* by Robin Kay (komadori at gekkou.co.uk)
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*/
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#include "avformat.h"
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#define SCHl_TAG MKTAG('S', 'C', 'H', 'l')
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2007-10-31 01:12:18 +02:00
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#define SEAD_TAG MKTAG('S', 'E', 'A', 'D') /* Sxxx header */
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#define SNDC_TAG MKTAG('S', 'N', 'D', 'C') /* Sxxx data */
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#define SEND_TAG MKTAG('S', 'E', 'N', 'D') /* Sxxx end */
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2007-10-26 00:10:18 +03:00
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#define ISNh_TAG MKTAG('1', 'S', 'N', 'h') /* 1SNx header */
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2007-10-25 23:38:49 +03:00
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#define EACS_TAG MKTAG('E', 'A', 'C', 'S')
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2007-10-26 00:10:18 +03:00
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#define ISNd_TAG MKTAG('1', 'S', 'N', 'd') /* 1SNx data */
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#define ISNe_TAG MKTAG('1', 'S', 'N', 'e') /* 1SNx end */
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2004-10-16 22:33:57 +03:00
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#define PT00_TAG MKTAG('P', 'T', 0x0, 0x0)
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2007-10-16 01:51:52 +03:00
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#define GSTR_TAG MKTAG('G', 'S', 'T', 'R')
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2004-10-16 22:33:57 +03:00
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#define SCDl_TAG MKTAG('S', 'C', 'D', 'l')
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#define SCEl_TAG MKTAG('S', 'C', 'E', 'l')
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2007-11-08 01:01:32 +02:00
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#define kVGT_TAG MKTAG('k', 'V', 'G', 'T') /* TGV i-frame */
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#define MADk_TAG MKTAG('M', 'A', 'D', 'k') /* MAD i-frame */
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#define MPCh_TAG MKTAG('M', 'P', 'C', 'h') /* MPEG2 */
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2007-10-16 01:51:52 +03:00
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#define MVhd_TAG MKTAG('M', 'V', 'h', 'd')
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#define MV0K_TAG MKTAG('M', 'V', '0', 'K')
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#define MV0F_TAG MKTAG('M', 'V', '0', 'F')
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2007-11-08 01:01:32 +02:00
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#define MVIh_TAG MKTAG('M', 'V', 'I', 'h') /* CMV header */
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2008-07-08 16:24:13 +03:00
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#define MVIf_TAG MKTAG('M', 'V', 'I', 'f') /* CMV i-frame */
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2004-10-16 22:33:57 +03:00
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typedef struct EaDemuxContext {
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2007-10-19 01:39:27 +03:00
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int big_endian;
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2008-05-13 18:51:37 +03:00
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enum CodecID video_codec;
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2007-10-16 01:51:52 +03:00
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AVRational time_base;
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2004-10-16 22:33:57 +03:00
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int video_stream_index;
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2008-05-13 18:51:37 +03:00
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enum CodecID audio_codec;
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2004-10-16 22:33:57 +03:00
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int audio_stream_index;
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int audio_frame_counter;
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int64_t audio_pts;
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2007-10-19 02:36:12 +03:00
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int bytes;
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2007-10-19 02:13:46 +03:00
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int sample_rate;
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2004-10-16 22:33:57 +03:00
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int num_channels;
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int num_samples;
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} EaDemuxContext;
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static uint32_t read_arbitary(ByteIOContext *pb) {
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uint8_t size, byte;
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int i;
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uint32_t word;
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size = get_byte(pb);
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word = 0;
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for (i = 0; i < size; i++) {
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byte = get_byte(pb);
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word <<= 8;
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word |= byte;
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}
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return word;
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}
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/*
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2007-10-19 00:55:51 +03:00
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* Process PT/GSTR sound header
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* return 1 if success, 0 if invalid format, otherwise AVERROR_xxx
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2004-10-16 22:33:57 +03:00
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*/
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2007-10-19 00:55:51 +03:00
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static int process_audio_header_elements(AVFormatContext *s)
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{
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2007-10-16 01:50:36 +03:00
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int inHeader = 1;
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2007-04-08 23:24:16 +03:00
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EaDemuxContext *ea = s->priv_data;
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2007-11-21 09:41:00 +02:00
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ByteIOContext *pb = s->pb;
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2007-11-25 18:32:47 +02:00
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int compression_type = -1, revision = -1, revision2 = -1;
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2004-10-16 22:33:57 +03:00
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2007-10-19 02:36:12 +03:00
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ea->bytes = 2;
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2007-10-19 02:13:46 +03:00
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ea->sample_rate = -1;
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2007-10-19 00:56:44 +03:00
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ea->num_channels = 1;
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2004-10-16 22:33:57 +03:00
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while (inHeader) {
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int inSubheader;
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uint8_t byte;
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2007-10-16 01:51:15 +03:00
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byte = get_byte(pb);
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2004-10-16 22:33:57 +03:00
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switch (byte) {
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case 0xFD:
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av_log (s, AV_LOG_INFO, "entered audio subheader\n");
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inSubheader = 1;
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while (inSubheader) {
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uint8_t subbyte;
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2007-10-16 01:51:15 +03:00
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subbyte = get_byte(pb);
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2004-10-16 22:33:57 +03:00
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switch (subbyte) {
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2007-10-19 02:13:46 +03:00
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case 0x80:
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revision = read_arbitary(pb);
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av_log (s, AV_LOG_INFO, "revision (element 0x80) set to 0x%08x\n", revision);
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break;
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2004-10-16 22:33:57 +03:00
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case 0x82:
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ea->num_channels = read_arbitary(pb);
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av_log (s, AV_LOG_INFO, "num_channels (element 0x82) set to 0x%08x\n", ea->num_channels);
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break;
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case 0x83:
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2007-10-19 01:47:56 +03:00
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compression_type = read_arbitary(pb);
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av_log (s, AV_LOG_INFO, "compression_type (element 0x83) set to 0x%08x\n", compression_type);
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2004-10-16 22:33:57 +03:00
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break;
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2007-10-19 02:13:46 +03:00
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case 0x84:
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ea->sample_rate = read_arbitary(pb);
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av_log (s, AV_LOG_INFO, "sample_rate (element 0x84) set to %i\n", ea->sample_rate);
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break;
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2004-10-16 22:33:57 +03:00
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case 0x85:
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ea->num_samples = read_arbitary(pb);
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av_log (s, AV_LOG_INFO, "num_samples (element 0x85) set to 0x%08x\n", ea->num_samples);
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break;
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case 0x8A:
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av_log (s, AV_LOG_INFO, "element 0x%02x set to 0x%08x\n", subbyte, read_arbitary(pb));
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av_log (s, AV_LOG_INFO, "exited audio subheader\n");
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inSubheader = 0;
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break;
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2007-11-25 18:32:47 +02:00
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case 0xA0:
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revision2 = read_arbitary(pb);
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av_log (s, AV_LOG_INFO, "revision2 (element 0xA0) set to 0x%08x\n", revision2);
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break;
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2007-10-16 01:51:52 +03:00
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case 0xFF:
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2007-10-19 00:45:53 +03:00
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av_log (s, AV_LOG_INFO, "end of header block reached (within audio subheader)\n");
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2007-10-16 01:51:52 +03:00
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inSubheader = 0;
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inHeader = 0;
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break;
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2004-10-16 22:33:57 +03:00
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default:
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av_log (s, AV_LOG_INFO, "element 0x%02x set to 0x%08x\n", subbyte, read_arbitary(pb));
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break;
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}
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}
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break;
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case 0xFF:
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av_log (s, AV_LOG_INFO, "end of header block reached\n");
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inHeader = 0;
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break;
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default:
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av_log (s, AV_LOG_INFO, "header element 0x%02x set to 0x%08x\n", byte, read_arbitary(pb));
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break;
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}
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}
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2007-10-19 01:53:37 +03:00
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switch (compression_type) {
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2007-10-19 02:05:30 +03:00
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case 0: ea->audio_codec = CODEC_ID_PCM_S16LE; break;
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2007-10-19 01:53:37 +03:00
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case 7: ea->audio_codec = CODEC_ID_ADPCM_EA; break;
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2007-10-24 23:49:42 +03:00
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case -1:
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switch (revision) {
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case 1: ea->audio_codec = CODEC_ID_ADPCM_EA_R1; break;
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case 2: ea->audio_codec = CODEC_ID_ADPCM_EA_R2; break;
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case 3: ea->audio_codec = CODEC_ID_ADPCM_EA_R3; break;
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2007-11-25 18:32:47 +02:00
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case -1: break;
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2007-10-24 23:49:42 +03:00
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default:
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av_log(s, AV_LOG_ERROR, "unsupported stream type; revision=%i\n", revision);
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return 0;
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}
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2007-11-25 18:32:47 +02:00
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switch (revision2) {
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case 8: ea->audio_codec = CODEC_ID_PCM_S16LE_PLANAR; break;
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2008-07-30 10:41:32 +03:00
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case -1: break;
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2007-11-25 18:32:47 +02:00
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default:
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av_log(s, AV_LOG_ERROR, "unsupported stream type; revision2=%i\n", revision2);
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return 0;
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}
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2007-10-24 23:49:42 +03:00
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break;
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2007-10-19 01:53:37 +03:00
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default:
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av_log(s, AV_LOG_ERROR, "unsupported stream type; compression_type=%i\n", compression_type);
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return 0;
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}
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2007-10-19 01:23:30 +03:00
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2007-10-19 02:13:46 +03:00
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if (ea->sample_rate == -1)
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ea->sample_rate = revision==3 ? 48000 : 22050;
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2007-10-19 00:55:51 +03:00
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return 1;
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}
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2007-10-25 23:38:49 +03:00
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/*
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* Process EACS sound header
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* return 1 if success, 0 if invalid format, otherwise AVERROR_xxx
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*/
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static int process_audio_header_eacs(AVFormatContext *s)
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{
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EaDemuxContext *ea = s->priv_data;
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2007-11-21 09:41:00 +02:00
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ByteIOContext *pb = s->pb;
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2007-10-25 23:38:49 +03:00
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int compression_type;
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ea->sample_rate = ea->big_endian ? get_be32(pb) : get_le32(pb);
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ea->bytes = get_byte(pb); /* 1=8-bit, 2=16-bit */
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ea->num_channels = get_byte(pb);
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compression_type = get_byte(pb);
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url_fskip(pb, 13);
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switch (compression_type) {
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case 0:
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switch (ea->bytes) {
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case 1: ea->audio_codec = CODEC_ID_PCM_S8; break;
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case 2: ea->audio_codec = CODEC_ID_PCM_S16LE; break;
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}
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break;
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case 1: ea->audio_codec = CODEC_ID_PCM_MULAW; ea->bytes = 1; break;
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2007-10-31 01:20:26 +02:00
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case 2: ea->audio_codec = CODEC_ID_ADPCM_IMA_EA_EACS; break;
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2007-10-25 23:38:49 +03:00
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default:
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av_log (s, AV_LOG_ERROR, "unsupported stream type; audio compression_type=%i\n", compression_type);
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}
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return 1;
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}
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2007-10-31 01:12:18 +02:00
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/*
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* Process SEAD sound header
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* return 1 if success, 0 if invalid format, otherwise AVERROR_xxx
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*/
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static int process_audio_header_sead(AVFormatContext *s)
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{
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EaDemuxContext *ea = s->priv_data;
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2007-11-21 09:41:00 +02:00
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ByteIOContext *pb = s->pb;
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2007-10-31 01:12:18 +02:00
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ea->sample_rate = get_le32(pb);
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ea->bytes = get_le32(pb); /* 1=8-bit, 2=16-bit */
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ea->num_channels = get_le32(pb);
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ea->audio_codec = CODEC_ID_ADPCM_IMA_EA_SEAD;
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return 1;
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}
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2007-10-19 01:01:30 +03:00
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static int process_video_header_vp6(AVFormatContext *s)
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{
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EaDemuxContext *ea = s->priv_data;
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2007-11-21 09:41:00 +02:00
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ByteIOContext *pb = s->pb;
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2007-10-19 01:01:30 +03:00
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url_fskip(pb, 16);
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ea->time_base.den = get_le32(pb);
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ea->time_base.num = get_le32(pb);
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2007-10-19 01:23:30 +03:00
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ea->video_codec = CODEC_ID_VP6;
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2007-10-19 01:01:30 +03:00
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return 1;
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}
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2007-10-19 00:55:51 +03:00
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/*
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* Process EA file header
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* Returns 1 if the EA file is valid and successfully opened, 0 otherwise
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*/
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static int process_ea_header(AVFormatContext *s) {
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uint32_t blockid, size = 0;
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EaDemuxContext *ea = s->priv_data;
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2007-11-21 09:41:00 +02:00
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ByteIOContext *pb = s->pb;
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2007-10-19 01:26:23 +03:00
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int i;
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for (i=0; i<5 && (!ea->audio_codec || !ea->video_codec); i++) {
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unsigned int startpos = url_ftell(pb);
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2007-10-19 01:32:26 +03:00
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int err = 0;
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2007-10-19 00:55:51 +03:00
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2007-10-19 01:27:27 +03:00
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blockid = get_le32(pb);
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2007-10-19 00:55:51 +03:00
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size = get_le32(pb);
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2007-10-19 01:39:27 +03:00
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if (i == 0)
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ea->big_endian = size > 0x000FFFFF;
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if (ea->big_endian)
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size = bswap_32(size);
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2007-10-19 01:26:23 +03:00
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switch (blockid) {
|
2007-10-26 00:10:18 +03:00
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case ISNh_TAG:
|
2007-10-25 23:38:49 +03:00
|
|
|
if (get_le32(pb) != EACS_TAG) {
|
|
|
|
av_log (s, AV_LOG_ERROR, "unknown 1SNh headerid\n");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
err = process_audio_header_eacs(s);
|
|
|
|
break;
|
|
|
|
|
2007-10-19 01:26:23 +03:00
|
|
|
case SCHl_TAG :
|
2007-10-19 01:27:27 +03:00
|
|
|
blockid = get_le32(pb);
|
|
|
|
if (blockid == GSTR_TAG) {
|
|
|
|
url_fskip(pb, 4);
|
|
|
|
} else if (blockid != PT00_TAG) {
|
|
|
|
av_log (s, AV_LOG_ERROR, "unknown SCHl headerid\n");
|
|
|
|
return 0;
|
|
|
|
}
|
2007-10-19 01:32:26 +03:00
|
|
|
err = process_audio_header_elements(s);
|
2007-10-19 01:26:23 +03:00
|
|
|
break;
|
|
|
|
|
2007-10-31 01:12:18 +02:00
|
|
|
case SEAD_TAG:
|
|
|
|
err = process_audio_header_sead(s);
|
|
|
|
break;
|
|
|
|
|
2008-07-08 16:24:13 +03:00
|
|
|
case MVIh_TAG :
|
|
|
|
ea->video_codec = CODEC_ID_CMV;
|
|
|
|
ea->time_base = (AVRational){0,0};
|
|
|
|
break;
|
|
|
|
|
2007-10-19 01:26:23 +03:00
|
|
|
case MVhd_TAG :
|
2007-10-19 01:32:26 +03:00
|
|
|
err = process_video_header_vp6(s);
|
2007-10-19 01:26:23 +03:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2007-10-19 01:32:26 +03:00
|
|
|
if (err < 0) {
|
|
|
|
av_log(s, AV_LOG_ERROR, "error parsing header: %i\n", err);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
2007-10-19 01:26:23 +03:00
|
|
|
url_fseek(pb, startpos + size, SEEK_SET);
|
|
|
|
}
|
2007-10-19 00:55:51 +03:00
|
|
|
|
2007-10-19 01:26:23 +03:00
|
|
|
url_fseek(pb, 0, SEEK_SET);
|
2004-10-16 22:33:57 +03:00
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int ea_probe(AVProbeData *p)
|
|
|
|
{
|
2007-10-23 00:06:04 +03:00
|
|
|
switch (AV_RL32(&p->buf[0])) {
|
2007-10-26 00:17:39 +03:00
|
|
|
case ISNh_TAG:
|
2007-10-23 00:06:04 +03:00
|
|
|
case SCHl_TAG:
|
2007-10-31 01:12:18 +02:00
|
|
|
case SEAD_TAG:
|
2007-11-08 01:01:32 +02:00
|
|
|
case kVGT_TAG:
|
|
|
|
case MADk_TAG:
|
|
|
|
case MPCh_TAG:
|
2007-10-23 00:06:04 +03:00
|
|
|
case MVhd_TAG:
|
2007-11-08 01:01:32 +02:00
|
|
|
case MVIh_TAG:
|
2007-10-16 01:51:52 +03:00
|
|
|
return AVPROBE_SCORE_MAX;
|
2007-10-23 00:06:04 +03:00
|
|
|
}
|
2007-10-16 01:51:52 +03:00
|
|
|
return 0;
|
2004-10-16 22:33:57 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
static int ea_read_header(AVFormatContext *s,
|
|
|
|
AVFormatParameters *ap)
|
|
|
|
{
|
2007-04-08 23:24:16 +03:00
|
|
|
EaDemuxContext *ea = s->priv_data;
|
2004-10-16 22:33:57 +03:00
|
|
|
AVStream *st;
|
|
|
|
|
|
|
|
if (!process_ea_header(s))
|
2007-07-19 18:23:32 +03:00
|
|
|
return AVERROR(EIO);
|
2004-10-16 22:33:57 +03:00
|
|
|
|
2007-10-19 02:52:08 +03:00
|
|
|
if (ea->video_codec) {
|
2007-10-16 01:52:22 +03:00
|
|
|
/* initialize the video decoder stream */
|
|
|
|
st = av_new_stream(s, 0);
|
|
|
|
if (!st)
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
ea->video_stream_index = st->index;
|
|
|
|
st->codec->codec_type = CODEC_TYPE_VIDEO;
|
2007-10-19 01:23:30 +03:00
|
|
|
st->codec->codec_id = ea->video_codec;
|
2007-10-16 01:52:22 +03:00
|
|
|
st->codec->codec_tag = 0; /* no fourcc */
|
|
|
|
st->codec->time_base = ea->time_base;
|
2007-10-16 01:51:52 +03:00
|
|
|
}
|
2004-10-16 22:33:57 +03:00
|
|
|
|
2007-10-19 02:42:54 +03:00
|
|
|
if (ea->audio_codec) {
|
2007-10-19 02:44:05 +03:00
|
|
|
/* initialize the audio decoder stream */
|
|
|
|
st = av_new_stream(s, 0);
|
|
|
|
if (!st)
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
av_set_pts_info(st, 33, 1, ea->sample_rate);
|
|
|
|
st->codec->codec_type = CODEC_TYPE_AUDIO;
|
|
|
|
st->codec->codec_id = ea->audio_codec;
|
|
|
|
st->codec->codec_tag = 0; /* no tag */
|
|
|
|
st->codec->channels = ea->num_channels;
|
|
|
|
st->codec->sample_rate = ea->sample_rate;
|
|
|
|
st->codec->bits_per_sample = ea->bytes * 8;
|
|
|
|
st->codec->bit_rate = st->codec->channels * st->codec->sample_rate *
|
|
|
|
st->codec->bits_per_sample / 4;
|
|
|
|
st->codec->block_align = st->codec->channels*st->codec->bits_per_sample;
|
|
|
|
ea->audio_stream_index = st->index;
|
|
|
|
ea->audio_frame_counter = 0;
|
2007-10-19 02:42:54 +03:00
|
|
|
}
|
2004-10-16 22:33:57 +03:00
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int ea_read_packet(AVFormatContext *s,
|
|
|
|
AVPacket *pkt)
|
|
|
|
{
|
|
|
|
EaDemuxContext *ea = s->priv_data;
|
2007-11-21 09:41:00 +02:00
|
|
|
ByteIOContext *pb = s->pb;
|
2004-10-16 22:33:57 +03:00
|
|
|
int ret = 0;
|
|
|
|
int packet_read = 0;
|
|
|
|
unsigned int chunk_type, chunk_size;
|
2007-10-16 01:51:52 +03:00
|
|
|
int key = 0;
|
2004-10-16 22:33:57 +03:00
|
|
|
|
|
|
|
while (!packet_read) {
|
2007-10-19 02:21:31 +03:00
|
|
|
chunk_type = get_le32(pb);
|
2007-10-19 02:22:50 +03:00
|
|
|
chunk_size = (ea->big_endian ? get_be32(pb) : get_le32(pb)) - 8;
|
2004-10-16 22:33:57 +03:00
|
|
|
|
|
|
|
switch (chunk_type) {
|
|
|
|
/* audio data */
|
2007-10-26 00:10:18 +03:00
|
|
|
case ISNh_TAG:
|
2007-10-25 23:38:49 +03:00
|
|
|
/* header chunk also contains data; skip over the header portion*/
|
|
|
|
url_fskip(pb, 32);
|
|
|
|
chunk_size -= 32;
|
2007-10-26 00:10:18 +03:00
|
|
|
case ISNd_TAG:
|
2004-10-16 22:33:57 +03:00
|
|
|
case SCDl_TAG:
|
2007-10-31 01:12:18 +02:00
|
|
|
case SNDC_TAG:
|
2007-10-19 02:50:52 +03:00
|
|
|
if (!ea->audio_codec) {
|
|
|
|
url_fskip(pb, chunk_size);
|
|
|
|
break;
|
2007-11-25 18:32:47 +02:00
|
|
|
} else if (ea->audio_codec == CODEC_ID_PCM_S16LE_PLANAR) {
|
|
|
|
url_fskip(pb, 12); /* planar header */
|
|
|
|
chunk_size -= 12;
|
2007-10-19 02:50:52 +03:00
|
|
|
}
|
2005-05-26 23:17:12 +03:00
|
|
|
ret = av_get_packet(pb, pkt, chunk_size);
|
|
|
|
if (ret != chunk_size)
|
2007-07-19 18:23:32 +03:00
|
|
|
ret = AVERROR(EIO);
|
2004-10-16 22:33:57 +03:00
|
|
|
else {
|
|
|
|
pkt->stream_index = ea->audio_stream_index;
|
|
|
|
pkt->pts = 90000;
|
|
|
|
pkt->pts *= ea->audio_frame_counter;
|
2007-10-19 02:13:46 +03:00
|
|
|
pkt->pts /= ea->sample_rate;
|
2004-10-16 22:33:57 +03:00
|
|
|
|
2007-10-19 02:40:03 +03:00
|
|
|
switch (ea->audio_codec) {
|
|
|
|
case CODEC_ID_ADPCM_EA:
|
2005-12-17 20:14:38 +02:00
|
|
|
/* 2 samples/byte, 1 or 2 samples per frame depending
|
2004-10-16 22:33:57 +03:00
|
|
|
* on stereo; chunk also has 12-byte header */
|
|
|
|
ea->audio_frame_counter += ((chunk_size - 12) * 2) /
|
|
|
|
ea->num_channels;
|
2007-10-19 02:40:03 +03:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
ea->audio_frame_counter += chunk_size /
|
|
|
|
(ea->bytes * ea->num_channels);
|
|
|
|
}
|
2004-10-16 22:33:57 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
packet_read = 1;
|
|
|
|
break;
|
|
|
|
|
|
|
|
/* ending tag */
|
2007-10-25 00:44:20 +03:00
|
|
|
case 0:
|
2007-10-26 00:10:18 +03:00
|
|
|
case ISNe_TAG:
|
2004-10-16 22:33:57 +03:00
|
|
|
case SCEl_TAG:
|
2007-10-31 01:12:18 +02:00
|
|
|
case SEND_TAG:
|
2007-07-19 18:23:32 +03:00
|
|
|
ret = AVERROR(EIO);
|
2004-10-16 22:33:57 +03:00
|
|
|
packet_read = 1;
|
|
|
|
break;
|
|
|
|
|
2008-07-08 16:24:13 +03:00
|
|
|
case MVIh_TAG:
|
|
|
|
key = PKT_FLAG_KEY;
|
|
|
|
case MVIf_TAG:
|
|
|
|
url_fseek(pb, -8, SEEK_CUR); // include chunk preamble
|
|
|
|
chunk_size += 8;
|
|
|
|
goto get_video_packet;
|
|
|
|
|
2007-10-16 01:51:52 +03:00
|
|
|
case MV0K_TAG:
|
|
|
|
key = PKT_FLAG_KEY;
|
|
|
|
case MV0F_TAG:
|
2008-07-08 16:24:13 +03:00
|
|
|
get_video_packet:
|
2007-10-16 01:51:52 +03:00
|
|
|
ret = av_get_packet(pb, pkt, chunk_size);
|
|
|
|
if (ret != chunk_size)
|
|
|
|
ret = AVERROR_IO;
|
|
|
|
else {
|
|
|
|
pkt->stream_index = ea->video_stream_index;
|
|
|
|
pkt->flags |= key;
|
|
|
|
}
|
|
|
|
packet_read = 1;
|
|
|
|
break;
|
|
|
|
|
2004-10-16 22:33:57 +03:00
|
|
|
default:
|
|
|
|
url_fseek(pb, chunk_size, SEEK_CUR);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2006-07-11 00:14:37 +03:00
|
|
|
AVInputFormat ea_demuxer = {
|
2004-10-16 22:33:57 +03:00
|
|
|
"ea",
|
2008-06-03 19:20:54 +03:00
|
|
|
NULL_IF_CONFIG_SMALL("Electronic Arts Multimedia Format"),
|
2004-10-16 22:33:57 +03:00
|
|
|
sizeof(EaDemuxContext),
|
|
|
|
ea_probe,
|
|
|
|
ea_read_header,
|
|
|
|
ea_read_packet,
|
|
|
|
};
|