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Diffstat (limited to 'ffmpeg1/libavformat/avs.c')
-rw-r--r--ffmpeg1/libavformat/avs.c232
1 files changed, 0 insertions, 232 deletions
diff --git a/ffmpeg1/libavformat/avs.c b/ffmpeg1/libavformat/avs.c
deleted file mode 100644
index ec9198b..0000000
--- a/ffmpeg1/libavformat/avs.c
+++ /dev/null
@@ -1,232 +0,0 @@
-/*
- * AVS demuxer.
- * Copyright (c) 2006 Aurelien Jacobs <aurel@gnuage.org>
- *
- * 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 "voc.h"
-
-
-typedef struct avs_format {
- VocDecContext voc;
- AVStream *st_video;
- AVStream *st_audio;
- int width;
- int height;
- int bits_per_sample;
- int fps;
- int nb_frames;
- int remaining_frame_size;
- int remaining_audio_size;
-} AvsFormat;
-
-typedef enum avs_block_type {
- AVS_NONE = 0x00,
- AVS_VIDEO = 0x01,
- AVS_AUDIO = 0x02,
- AVS_PALETTE = 0x03,
- AVS_GAME_DATA = 0x04,
-} AvsBlockType;
-
-static int avs_probe(AVProbeData * p)
-{
- const uint8_t *d;
-
- d = p->buf;
- if (d[0] == 'w' && d[1] == 'W' && d[2] == 0x10 && d[3] == 0)
- return 55;
-
- return 0;
-}
-
-static int avs_read_header(AVFormatContext * s)
-{
- AvsFormat *avs = s->priv_data;
-
- s->ctx_flags |= AVFMTCTX_NOHEADER;
-
- avio_skip(s->pb, 4);
- avs->width = avio_rl16(s->pb);
- avs->height = avio_rl16(s->pb);
- avs->bits_per_sample = avio_rl16(s->pb);
- avs->fps = avio_rl16(s->pb);
- avs->nb_frames = avio_rl32(s->pb);
- avs->remaining_frame_size = 0;
- avs->remaining_audio_size = 0;
-
- avs->st_video = avs->st_audio = NULL;
-
- if (avs->width != 318 || avs->height != 198)
- av_log(s, AV_LOG_ERROR, "This avs pretend to be %dx%d "
- "when the avs format is supposed to be 318x198 only.\n",
- avs->width, avs->height);
-
- return 0;
-}
-
-static int
-avs_read_video_packet(AVFormatContext * s, AVPacket * pkt,
- AvsBlockType type, int sub_type, int size,
- uint8_t * palette, int palette_size)
-{
- AvsFormat *avs = s->priv_data;
- int ret;
-
- ret = av_new_packet(pkt, size + palette_size);
- if (ret < 0)
- return ret;
-
- if (palette_size) {
- pkt->data[0] = 0x00;
- pkt->data[1] = 0x03;
- pkt->data[2] = palette_size & 0xFF;
- pkt->data[3] = (palette_size >> 8) & 0xFF;
- memcpy(pkt->data + 4, palette, palette_size - 4);
- }
-
- pkt->data[palette_size + 0] = sub_type;
- pkt->data[palette_size + 1] = type;
- pkt->data[palette_size + 2] = size & 0xFF;
- pkt->data[palette_size + 3] = (size >> 8) & 0xFF;
- ret = avio_read(s->pb, pkt->data + palette_size + 4, size - 4) + 4;
- if (ret < size) {
- av_free_packet(pkt);
- return AVERROR(EIO);
- }
-
- pkt->size = ret + palette_size;
- pkt->stream_index = avs->st_video->index;
- if (sub_type == 0)
- pkt->flags |= AV_PKT_FLAG_KEY;
-
- return 0;
-}
-
-static int avs_read_audio_packet(AVFormatContext * s, AVPacket * pkt)
-{
- AvsFormat *avs = s->priv_data;
- int ret, size;
-
- size = avio_tell(s->pb);
- ret = ff_voc_get_packet(s, pkt, avs->st_audio, avs->remaining_audio_size);
- size = avio_tell(s->pb) - size;
- avs->remaining_audio_size -= size;
-
- if (ret == AVERROR(EIO))
- return 0; /* this indicate EOS */
- if (ret < 0)
- return ret;
-
- pkt->stream_index = avs->st_audio->index;
- pkt->flags |= AV_PKT_FLAG_KEY;
-
- return size;
-}
-
-static int avs_read_packet(AVFormatContext * s, AVPacket * pkt)
-{
- AvsFormat *avs = s->priv_data;
- int sub_type = 0, size = 0;
- AvsBlockType type = AVS_NONE;
- int palette_size = 0;
- uint8_t palette[4 + 3 * 256];
- int ret;
-
- if (avs->remaining_audio_size > 0)
- if (avs_read_audio_packet(s, pkt) > 0)
- return 0;
-
- while (1) {
- if (avs->remaining_frame_size <= 0) {
- if (!avio_rl16(s->pb)) /* found EOF */
- return AVERROR(EIO);
- avs->remaining_frame_size = avio_rl16(s->pb) - 4;
- }
-
- while (avs->remaining_frame_size > 0) {
- sub_type = avio_r8(s->pb);
- type = avio_r8(s->pb);
- size = avio_rl16(s->pb);
- if (size < 4)
- return AVERROR_INVALIDDATA;
- avs->remaining_frame_size -= size;
-
- switch (type) {
- case AVS_PALETTE:
- if (size - 4 > sizeof(palette))
- return AVERROR_INVALIDDATA;
- ret = avio_read(s->pb, palette, size - 4);
- if (ret < size - 4)
- return AVERROR(EIO);
- palette_size = size;
- break;
-
- case AVS_VIDEO:
- if (!avs->st_video) {
- avs->st_video = avformat_new_stream(s, NULL);
- if (avs->st_video == NULL)
- return AVERROR(ENOMEM);
- avs->st_video->codec->codec_type = AVMEDIA_TYPE_VIDEO;
- avs->st_video->codec->codec_id = AV_CODEC_ID_AVS;
- avs->st_video->codec->width = avs->width;
- avs->st_video->codec->height = avs->height;
- avs->st_video->codec->bits_per_coded_sample=avs->bits_per_sample;
- avs->st_video->nb_frames = avs->nb_frames;
-#if FF_API_R_FRAME_RATE
- avs->st_video->r_frame_rate =
-#endif
- avs->st_video->avg_frame_rate = (AVRational){avs->fps, 1};
- }
- return avs_read_video_packet(s, pkt, type, sub_type, size,
- palette, palette_size);
-
- case AVS_AUDIO:
- if (!avs->st_audio) {
- avs->st_audio = avformat_new_stream(s, NULL);
- if (avs->st_audio == NULL)
- return AVERROR(ENOMEM);
- avs->st_audio->codec->codec_type = AVMEDIA_TYPE_AUDIO;
- }
- avs->remaining_audio_size = size - 4;
- size = avs_read_audio_packet(s, pkt);
- if (size != 0)
- return size;
- break;
-
- default:
- avio_skip(s->pb, size - 4);
- }
- }
- }
-}
-
-static int avs_read_close(AVFormatContext * s)
-{
- return 0;
-}
-
-AVInputFormat ff_avs_demuxer = {
- .name = "avs",
- .long_name = NULL_IF_CONFIG_SMALL("AVS"),
- .priv_data_size = sizeof(AvsFormat),
- .read_probe = avs_probe,
- .read_header = avs_read_header,
- .read_packet = avs_read_packet,
- .read_close = avs_read_close,
-};
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