|
|
|
|
@ -1,5 +1,5 @@ |
|
|
|
|
/*
|
|
|
|
|
* Argonaut Games CVG demuxer |
|
|
|
|
* Argonaut Games CVG (de)muxer |
|
|
|
|
* |
|
|
|
|
* Copyright (C) 2021 Zane van Iperen (zane@zanevaniperen.com) |
|
|
|
|
* |
|
|
|
|
@ -21,6 +21,7 @@ |
|
|
|
|
*/ |
|
|
|
|
#include "avformat.h" |
|
|
|
|
#include "internal.h" |
|
|
|
|
#include "libavutil/opt.h" |
|
|
|
|
#include "libavutil/intreadwrite.h" |
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
@ -53,6 +54,14 @@ typedef struct ArgoCVGDemuxContext { |
|
|
|
|
uint32_t blocks_read; |
|
|
|
|
} ArgoCVGDemuxContext; |
|
|
|
|
|
|
|
|
|
typedef struct ArgoCVGMuxContext { |
|
|
|
|
const AVClass *class; |
|
|
|
|
int skip_rate_check; |
|
|
|
|
uint32_t checksum; |
|
|
|
|
size_t size; |
|
|
|
|
} ArgoCVGMuxContext; |
|
|
|
|
|
|
|
|
|
#if CONFIG_ARGO_CVG_DEMUXER |
|
|
|
|
/* "Special" files that are played at a different rate. */ |
|
|
|
|
static ArgoCVGOverride overrides[] = { |
|
|
|
|
{ "CRYS.CVG", { 23592, 0, 1 }, 2495499, 88200 }, /* Beta */ |
|
|
|
|
@ -243,3 +252,141 @@ const AVInputFormat ff_argo_cvg_demuxer = { |
|
|
|
|
.read_packet = argo_cvg_read_packet, |
|
|
|
|
.read_seek = argo_cvg_seek, |
|
|
|
|
}; |
|
|
|
|
#endif |
|
|
|
|
|
|
|
|
|
#if CONFIG_ARGO_CVG_MUXER |
|
|
|
|
static int argo_cvg_write_init(AVFormatContext *s) |
|
|
|
|
{ |
|
|
|
|
ArgoCVGMuxContext *ctx = s->priv_data; |
|
|
|
|
const AVCodecParameters *par; |
|
|
|
|
|
|
|
|
|
if (s->nb_streams != 1) { |
|
|
|
|
av_log(s, AV_LOG_ERROR, "CVG files have exactly one stream\n"); |
|
|
|
|
return AVERROR(EINVAL); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
par = s->streams[0]->codecpar; |
|
|
|
|
|
|
|
|
|
if (par->codec_id != AV_CODEC_ID_ADPCM_PSX) { |
|
|
|
|
av_log(s, AV_LOG_ERROR, "%s codec not supported\n", |
|
|
|
|
avcodec_get_name(par->codec_id)); |
|
|
|
|
return AVERROR(EINVAL); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (par->channels != 1) { |
|
|
|
|
av_log(s, AV_LOG_ERROR, "CVG files only support 1 channel\n"); |
|
|
|
|
return AVERROR(EINVAL); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (par->block_align != ARGO_CVG_BLOCK_ALIGN) |
|
|
|
|
return AVERROR(EINVAL); |
|
|
|
|
|
|
|
|
|
if (!ctx->skip_rate_check && par->sample_rate != 22050) { |
|
|
|
|
av_log(s, AV_LOG_ERROR, "Sample rate must be 22050\n"); |
|
|
|
|
return AVERROR(EINVAL); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL)) { |
|
|
|
|
av_log(s, AV_LOG_ERROR, "Stream not seekable, unable to write output file\n"); |
|
|
|
|
return AVERROR(EINVAL); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static int argo_cvg_write_header(AVFormatContext *s) |
|
|
|
|
{ |
|
|
|
|
ArgoCVGMuxContext *ctx = s->priv_data; |
|
|
|
|
|
|
|
|
|
avio_wl32(s->pb, 0); /* Size, fixed later. */ |
|
|
|
|
avio_wl32(s->pb, 0); |
|
|
|
|
avio_wl32(s->pb, 1); |
|
|
|
|
|
|
|
|
|
ctx->checksum = 1; |
|
|
|
|
ctx->size = 8; |
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static int argo_cvg_write_packet(AVFormatContext *s, AVPacket *pkt) |
|
|
|
|
{ |
|
|
|
|
ArgoCVGMuxContext *ctx = s->priv_data; |
|
|
|
|
AVCodecParameters *par = s->streams[0]->codecpar; |
|
|
|
|
|
|
|
|
|
if (pkt->size % par->block_align != 0) |
|
|
|
|
return AVERROR_INVALIDDATA; |
|
|
|
|
|
|
|
|
|
avio_write(s->pb, pkt->data, pkt->size); |
|
|
|
|
|
|
|
|
|
ctx->size += pkt->size; |
|
|
|
|
|
|
|
|
|
if (ctx->size > UINT32_MAX) |
|
|
|
|
return AVERROR_INVALIDDATA; |
|
|
|
|
|
|
|
|
|
for (int i = 0; i < pkt->size; i++) |
|
|
|
|
ctx->checksum += pkt->data[i]; |
|
|
|
|
|
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static int argo_cvg_write_trailer(AVFormatContext *s) |
|
|
|
|
{ |
|
|
|
|
ArgoCVGMuxContext *ctx = s->priv_data; |
|
|
|
|
int64_t ret; |
|
|
|
|
|
|
|
|
|
av_log(s, AV_LOG_TRACE, "size = %zu\n", ctx->size); |
|
|
|
|
av_log(s, AV_LOG_TRACE, "checksum = %u\n", ctx->checksum); |
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* NB: This is wrong. We're always slightly under the original. |
|
|
|
|
* Verified by remuxing. For reference (orig - remuxed): |
|
|
|
|
* - TCLD.CVG: 4706074 - 4705696 = 378 |
|
|
|
|
* - DANLOOP1.CVG: 5684641 - 5684212 = 429 |
|
|
|
|
* - CRYS.CVG: 2495499 - 2495367 = 132 |
|
|
|
|
* - PICKUP88.CVG: 1348091 - 1347937 = 154 |
|
|
|
|
* - SELECT1.CVG: 549987 - 549752 = 235 |
|
|
|
|
* Also NB: it doesn't matter, the game doesn't check them. |
|
|
|
|
*/ |
|
|
|
|
avio_wl32(s->pb, ctx->checksum); |
|
|
|
|
|
|
|
|
|
if ((ret = avio_seek(s->pb, 0, SEEK_SET) < 0)) |
|
|
|
|
return ret; |
|
|
|
|
|
|
|
|
|
avio_wl32(s->pb, (uint32_t)ctx->size); |
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static const AVOption argo_cvg_options[] = { |
|
|
|
|
{ |
|
|
|
|
.name = "skip_rate_check", |
|
|
|
|
.help = "skip sample rate check", |
|
|
|
|
.offset = offsetof(ArgoCVGMuxContext, skip_rate_check), |
|
|
|
|
.type = AV_OPT_TYPE_BOOL, |
|
|
|
|
.default_val = {.i64 = 0}, |
|
|
|
|
.min = 0, |
|
|
|
|
.max = 1, |
|
|
|
|
.flags = AV_OPT_FLAG_ENCODING_PARAM |
|
|
|
|
}, |
|
|
|
|
{ NULL } |
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
static const AVClass argo_cvg_muxer_class = { |
|
|
|
|
.class_name = "argo_cvg_muxer", |
|
|
|
|
.item_name = av_default_item_name, |
|
|
|
|
.option = argo_cvg_options, |
|
|
|
|
.version = LIBAVUTIL_VERSION_INT |
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
const AVOutputFormat ff_argo_cvg_muxer = { |
|
|
|
|
.name = "argo_cvg", |
|
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("Argonaut Games CVG"), |
|
|
|
|
.extensions = "cvg", |
|
|
|
|
.audio_codec = AV_CODEC_ID_ADPCM_PSX, |
|
|
|
|
.video_codec = AV_CODEC_ID_NONE, |
|
|
|
|
.init = argo_cvg_write_init, |
|
|
|
|
.write_header = argo_cvg_write_header, |
|
|
|
|
.write_packet = argo_cvg_write_packet, |
|
|
|
|
.write_trailer = argo_cvg_write_trailer, |
|
|
|
|
.priv_class = &argo_cvg_muxer_class, |
|
|
|
|
.priv_data_size = sizeof(ArgoCVGMuxContext), |
|
|
|
|
}; |
|
|
|
|
#endif |
|
|
|
|
|
Zane van Iperen
4 years ago