* Delphine Software International CIN File Demuxer
* Copyright (c) 2006 Gregory Montoir (cyx@users.sourceforge.net)
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
- * @file dsicin.c
+ * @file
* Delphine Software International CIN file demuxer
*/
+#include "libavutil/channel_layout.h"
+#include "libavutil/intreadwrite.h"
#include "avformat.h"
+#include "internal.h"
typedef struct CinFileHeader {
return AVPROBE_SCORE_MAX;
}
-static int cin_read_file_header(CinDemuxContext *cin, ByteIOContext *pb) {
+static int cin_read_file_header(CinDemuxContext *cin, AVIOContext *pb) {
CinFileHeader *hdr = &cin->file_header;
- if (get_le32(pb) != 0x55AA0000)
+ if (avio_rl32(pb) != 0x55AA0000)
return AVERROR_INVALIDDATA;
- hdr->video_frame_size = get_le32(pb);
- hdr->video_frame_width = get_le16(pb);
- hdr->video_frame_height = get_le16(pb);
- hdr->audio_frequency = get_le32(pb);
- hdr->audio_bits = get_byte(pb);
- hdr->audio_stereo = get_byte(pb);
- hdr->audio_frame_size = get_le16(pb);
+ hdr->video_frame_size = avio_rl32(pb);
+ hdr->video_frame_width = avio_rl16(pb);
+ hdr->video_frame_height = avio_rl16(pb);
+ hdr->audio_frequency = avio_rl32(pb);
+ hdr->audio_bits = avio_r8(pb);
+ hdr->audio_stereo = avio_r8(pb);
+ hdr->audio_frame_size = avio_rl16(pb);
if (hdr->audio_frequency != 22050 || hdr->audio_bits != 16 || hdr->audio_stereo != 0)
return AVERROR_INVALIDDATA;
return 0;
}
-static int cin_read_header(AVFormatContext *s, AVFormatParameters *ap)
+static int cin_read_header(AVFormatContext *s)
{
int rc;
CinDemuxContext *cin = s->priv_data;
CinFileHeader *hdr = &cin->file_header;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
AVStream *st;
rc = cin_read_file_header(cin, pb);
cin->audio_buffer_size = 0;
/* initialize the video decoder stream */
- st = av_new_stream(s, 0);
+ st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
- av_set_pts_info(st, 32, 1, 12);
+ avpriv_set_pts_info(st, 32, 1, 12);
cin->video_stream_index = st->index;
- st->codec->codec_type = CODEC_TYPE_VIDEO;
- st->codec->codec_id = CODEC_ID_DSICINVIDEO;
+ st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+ st->codec->codec_id = AV_CODEC_ID_DSICINVIDEO;
st->codec->codec_tag = 0; /* no fourcc */
st->codec->width = hdr->video_frame_width;
st->codec->height = hdr->video_frame_height;
/* initialize the audio decoder stream */
- st = av_new_stream(s, 0);
+ st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
- av_set_pts_info(st, 32, 1, 22050);
+ avpriv_set_pts_info(st, 32, 1, 22050);
cin->audio_stream_index = st->index;
- st->codec->codec_type = CODEC_TYPE_AUDIO;
- st->codec->codec_id = CODEC_ID_DSICINAUDIO;
+ st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
+ st->codec->codec_id = AV_CODEC_ID_DSICINAUDIO;
st->codec->codec_tag = 0; /* no tag */
st->codec->channels = 1;
+ st->codec->channel_layout = AV_CH_LAYOUT_MONO;
st->codec->sample_rate = 22050;
- st->codec->bits_per_coded_sample = 16;
+ st->codec->bits_per_coded_sample = 8;
st->codec->bit_rate = st->codec->sample_rate * st->codec->bits_per_coded_sample * st->codec->channels;
- st->codec->block_align = st->codec->channels * st->codec->bits_per_coded_sample;
return 0;
}
-static int cin_read_frame_header(CinDemuxContext *cin, ByteIOContext *pb) {
+static int cin_read_frame_header(CinDemuxContext *cin, AVIOContext *pb) {
CinFrameHeader *hdr = &cin->frame_header;
- hdr->video_frame_type = get_byte(pb);
- hdr->audio_frame_type = get_byte(pb);
- hdr->pal_colors_count = get_le16(pb);
- hdr->video_frame_size = get_le32(pb);
- hdr->audio_frame_size = get_le32(pb);
+ hdr->video_frame_type = avio_r8(pb);
+ hdr->audio_frame_type = avio_r8(pb);
+ hdr->pal_colors_count = avio_rl16(pb);
+ hdr->video_frame_size = avio_rl32(pb);
+ hdr->audio_frame_size = avio_rl32(pb);
- if (url_feof(pb) || url_ferror(pb))
+ if (pb->eof_reached || pb->error)
return AVERROR(EIO);
- if (get_le32(pb) != 0xAA55AA55)
+ if (avio_rl32(pb) != 0xAA55AA55)
+ return AVERROR_INVALIDDATA;
+ if (hdr->video_frame_size < 0 || hdr->audio_frame_size < 0)
return AVERROR_INVALIDDATA;
return 0;
static int cin_read_packet(AVFormatContext *s, AVPacket *pkt)
{
CinDemuxContext *cin = s->priv_data;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
CinFrameHeader *hdr = &cin->frame_header;
int rc, palette_type, pkt_size;
+ int ret;
if (cin->audio_buffer_size == 0) {
rc = cin_read_frame_header(cin, pb);
/* palette and video packet */
pkt_size = (palette_type + 3) * hdr->pal_colors_count + hdr->video_frame_size;
- if (av_new_packet(pkt, 4 + pkt_size))
- return AVERROR(ENOMEM);
+ ret = av_new_packet(pkt, 4 + pkt_size);
+ if (ret < 0)
+ return ret;
pkt->stream_index = cin->video_stream_index;
pkt->pts = cin->video_stream_pts++;
pkt->data[2] = hdr->pal_colors_count >> 8;
pkt->data[3] = hdr->video_frame_type;
- if (get_buffer(pb, &pkt->data[4], pkt_size) != pkt_size)
- return AVERROR(EIO);
+ ret = avio_read(pb, &pkt->data[4], pkt_size);
+ if (ret < 0) {
+ av_packet_unref(pkt);
+ return ret;
+ }
+ if (ret < pkt_size)
+ av_shrink_packet(pkt, 4 + ret);
/* sound buffer will be processed on next read_packet() call */
cin->audio_buffer_size = hdr->audio_frame_size;
}
/* audio packet */
- if (av_new_packet(pkt, cin->audio_buffer_size))
- return AVERROR(ENOMEM);
+ ret = av_get_packet(pb, pkt, cin->audio_buffer_size);
+ if (ret < 0)
+ return ret;
pkt->stream_index = cin->audio_stream_index;
pkt->pts = cin->audio_stream_pts;
- cin->audio_stream_pts += cin->audio_buffer_size * 2 / cin->file_header.audio_frame_size;
-
- if (get_buffer(pb, pkt->data, cin->audio_buffer_size) != cin->audio_buffer_size)
- return AVERROR(EIO);
-
+ pkt->duration = cin->audio_buffer_size - (pkt->pts == 0);
+ cin->audio_stream_pts += pkt->duration;
cin->audio_buffer_size = 0;
return 0;
}
-AVInputFormat dsicin_demuxer = {
- "dsicin",
- NULL_IF_CONFIG_SMALL("Delphine Software International CIN format"),
- sizeof(CinDemuxContext),
- cin_probe,
- cin_read_header,
- cin_read_packet,
+AVInputFormat ff_dsicin_demuxer = {
+ .name = "dsicin",
+ .long_name = NULL_IF_CONFIG_SMALL("Delphine Software International CIN"),
+ .priv_data_size = sizeof(CinDemuxContext),
+ .read_probe = cin_probe,
+ .read_header = cin_read_header,
+ .read_packet = cin_read_packet,
};
projects / ffmpeg / blobdiff