-/*
+/*
* RAW encoder and decoder
* Copyright (c) 2001 Fabrice Bellard.
+ * Copyright (c) 2005 Alex Beregszaszi
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
return 0;
}
+static int flac_write_header(struct AVFormatContext *s)
+{
+ static const uint8_t header[8] = {
+ 0x66, 0x4C, 0x61, 0x43, 0x80, 0x00, 0x00, 0x22
+ };
+ uint8_t *streaminfo = s->streams[0]->codec->extradata;
+ int len = s->streams[0]->codec->extradata_size;
+ if(streaminfo != NULL && len > 0) {
+ put_buffer(&s->pb, header, 8);
+ put_buffer(&s->pb, streaminfo, len);
+ }
+ return 0;
+}
+
static int raw_write_packet(struct AVFormatContext *s, AVPacket *pkt)
{
put_buffer(&s->pb, pkt->data, pkt->size);
st = av_new_stream(s, 0);
if (!st)
return AVERROR_NOMEM;
- if (ap) {
+
id = s->iformat->value;
if (id == CODEC_ID_RAWVIDEO) {
st->codec->codec_type = CODEC_TYPE_VIDEO;
default:
return -1;
}
- } else {
- return -1;
- }
return 0;
}
{
int ret, size;
// AVStream *st = s->streams[0];
-
+
size= RAW_PACKET_SIZE;
ret= av_get_packet(&s->pb, pkt, size);
if (av_new_packet(pkt, size) < 0)
return AVERROR_IO;
-
+
pkt->pos= url_ftell(&s->pb);
pkt->stream_index = 0;
ret = get_partial_buffer(&s->pb, pkt->data, size);
return ret;
}
+// http://www.artificis.hu/files/texts/ingenient.txt
+static int ingenient_read_packet(AVFormatContext *s, AVPacket *pkt)
+{
+ int ret, size, w, h, unk1, unk2;
+
+ if (get_le32(&s->pb) != MKTAG('M', 'J', 'P', 'G'))
+ return AVERROR_IO; // FIXME
+
+ size = get_le32(&s->pb);
+
+ w = get_le16(&s->pb);
+ h = get_le16(&s->pb);
+
+ url_fskip(&s->pb, 8); // zero + size (padded?)
+ url_fskip(&s->pb, 2);
+ unk1 = get_le16(&s->pb);
+ unk2 = get_le16(&s->pb);
+ url_fskip(&s->pb, 22); // ascii timestamp
+
+ av_log(NULL, AV_LOG_DEBUG, "Ingenient packet: size=%d, width=%d, height=%d, unk1=%d unk2=%d\n",
+ size, w, h, unk1, unk2);
+
+ if (av_new_packet(pkt, size) < 0)
+ return AVERROR_IO;
+
+ pkt->pos = url_ftell(&s->pb);
+ pkt->stream_index = 0;
+ ret = get_buffer(&s->pb, pkt->data, size);
+ if (ret <= 0) {
+ av_free_packet(pkt);
+ return AVERROR_IO;
+ }
+ pkt->size = ret;
+ return ret;
+}
+
static int raw_read_close(AVFormatContext *s)
{
return 0;
}
-int pcm_read_seek(AVFormatContext *s,
+int pcm_read_seek(AVFormatContext *s,
int stream_index, int64_t timestamp, int flags)
{
AVStream *st;
byte_rate = st->codec->bit_rate / 8;
break;
}
-
+
if (block_align <= 0 || byte_rate <= 0)
return -1;
/* compute the position by aligning it to block_align */
- pos = av_rescale_rnd(timestamp * byte_rate,
- st->time_base.num,
+ pos = av_rescale_rnd(timestamp * byte_rate,
+ st->time_base.num,
st->time_base.den * (int64_t)block_align,
(flags & AVSEEK_FLAG_BACKWARD) ? AV_ROUND_DOWN : AV_ROUND_UP);
pos *= block_align;
return 0;
}
+/* flac read */
+static int flac_read_header(AVFormatContext *s,
+ AVFormatParameters *ap)
+{
+ AVStream *st;
+
+ st = av_new_stream(s, 0);
+ if (!st)
+ return AVERROR_NOMEM;
+ st->codec->codec_type = CODEC_TYPE_AUDIO;
+ st->codec->codec_id = CODEC_ID_FLAC;
+ st->need_parsing = 1;
+ /* the parameters will be extracted from the compressed bitstream */
+ return 0;
+}
+
/* dts read */
static int dts_read_header(AVFormatContext *s,
AVFormatParameters *ap)
return 0;
}
+/* aac read */
+static int aac_read_header(AVFormatContext *s,
+ AVFormatParameters *ap)
+{
+ AVStream *st;
+
+ st = av_new_stream(s, 0);
+ if (!st)
+ return AVERROR_NOMEM;
+
+ st->codec->codec_type = CODEC_TYPE_AUDIO;
+ st->codec->codec_id = CODEC_ID_AAC;
+ st->need_parsing = 1;
+ /* the parameters will be extracted from the compressed bitstream */
+ return 0;
+}
+
/* mpeg1/h263 input */
static int video_read_header(AVFormatContext *s,
AVFormatParameters *ap)
/* for mjpeg, specify frame rate */
/* for mpeg4 specify it too (most mpeg4 streams dont have the fixed_vop_rate set ...)*/
- if (ap && ap->time_base.num) {
+ if (ap->time_base.num) {
av_set_pts_info(st, 64, ap->time_base.num, ap->time_base.den);
- } else if ( st->codec->codec_id == CODEC_ID_MJPEG ||
+ } else if ( st->codec->codec_id == CODEC_ID_MJPEG ||
st->codec->codec_id == CODEC_ID_MPEG4 ||
st->codec->codec_id == CODEC_ID_H264) {
av_set_pts_info(st, 64, 1, 25);
return 0;
}
-#define SEQ_START_CODE 0x000001b3
-#define GOP_START_CODE 0x000001b8
-#define PICTURE_START_CODE 0x00000100
+#define SEQ_START_CODE 0x000001b3
+#define GOP_START_CODE 0x000001b8
+#define PICTURE_START_CODE 0x00000100
+#define SLICE_START_CODE 0x00000101
+#define PACK_START_CODE 0x000001ba
+#define VIDEO_ID 0x000001e0
+#define AUDIO_ID 0x000001c0
-/* XXX: improve that by looking at several start codes */
static int mpegvideo_probe(AVProbeData *p)
{
- int code;
- const uint8_t *d;
-
- /* we search the first start code. If it is a sequence, gop or
- picture start code then we decide it is an mpeg video
- stream. We do not send highest value to give a chance to mpegts */
- /* NOTE: the search range was restricted to avoid too many false
- detections */
-
- if (p->buf_size < 6)
- return 0;
- d = p->buf;
- code = (d[0] << 24) | (d[1] << 16) | (d[2] << 8) | (d[3]);
- if ((code & 0xffffff00) == 0x100) {
- if (code == SEQ_START_CODE ||
- code == GOP_START_CODE ||
- code == PICTURE_START_CODE)
- return 50 - 1;
- else
- return 0;
+ uint32_t code= -1;
+ int pic=0, seq=0, slice=0, pspack=0, pes=0;
+ int i;
+
+ for(i=0; i<p->buf_size; i++){
+ code = (code<<8) + p->buf[i];
+ if ((code & 0xffffff00) == 0x100) {
+ switch(code){
+ case SEQ_START_CODE: seq++; break;
+ case PICTURE_START_CODE: pic++; break;
+ case SLICE_START_CODE: slice++; break;
+ case PACK_START_CODE: pspack++; break;
+ case VIDEO_ID:
+ case AUDIO_ID: pes++; break;
+ }
+ }
}
+ if(seq && seq*9<=pic*10 && pic*9<=slice*10 && !pspack && !pes)
+ return AVPROBE_SCORE_MAX/2+1; // +1 for .mpg
return 0;
}
return 0;
}
-AVInputFormat shorten_iformat = {
+AVInputFormat shorten_demuxer = {
"shn",
- "raw shn",
+ "raw shorten",
0,
NULL,
shorten_read_header,
.extensions = "shn",
};
-AVInputFormat ac3_iformat = {
+AVInputFormat flac_demuxer = {
+ "flac",
+ "raw flac",
+ 0,
+ NULL,
+ flac_read_header,
+ raw_read_partial_packet,
+ raw_read_close,
+ .extensions = "flac",
+};
+
+#ifdef CONFIG_MUXERS
+AVOutputFormat flac_muxer = {
+ "flac",
+ "raw flac",
+ "audio/x-flac",
+ "flac",
+ 0,
+ CODEC_ID_FLAC,
+ 0,
+ flac_write_header,
+ raw_write_packet,
+ raw_write_trailer,
+};
+#endif //CONFIG_MUXERS
+
+AVInputFormat ac3_demuxer = {
"ac3",
"raw ac3",
0,
};
#ifdef CONFIG_MUXERS
-AVOutputFormat ac3_oformat = {
+AVOutputFormat ac3_muxer = {
"ac3",
"raw ac3",
- "audio/x-ac3",
+ "audio/x-ac3",
"ac3",
0,
CODEC_ID_AC3,
};
#endif //CONFIG_MUXERS
-AVInputFormat dts_iformat = {
+AVInputFormat dts_demuxer = {
"dts",
"raw dts",
0,
.extensions = "dts",
};
-AVInputFormat h261_iformat = {
+AVInputFormat aac_demuxer = {
+ "aac",
+ "ADTS AAC",
+ 0,
+ NULL,
+ aac_read_header,
+ raw_read_partial_packet,
+ raw_read_close,
+ .extensions = "aac",
+};
+
+AVInputFormat h261_demuxer = {
"h261",
"raw h261",
0,
};
#ifdef CONFIG_MUXERS
-AVOutputFormat h261_oformat = {
+AVOutputFormat h261_muxer = {
"h261",
"raw h261",
"video/x-h261",
};
#endif //CONFIG_MUXERS
-AVInputFormat h263_iformat = {
+AVInputFormat h263_demuxer = {
"h263",
"raw h263",
0,
};
#ifdef CONFIG_MUXERS
-AVOutputFormat h263_oformat = {
+AVOutputFormat h263_muxer = {
"h263",
"raw h263",
"video/x-h263",
};
#endif //CONFIG_MUXERS
-AVInputFormat m4v_iformat = {
+AVInputFormat m4v_demuxer = {
"m4v",
"raw MPEG4 video format",
0,
};
#ifdef CONFIG_MUXERS
-AVOutputFormat m4v_oformat = {
+AVOutputFormat m4v_muxer = {
"m4v",
"raw MPEG4 video format",
NULL,
};
#endif //CONFIG_MUXERS
-AVInputFormat h264_iformat = {
+AVInputFormat h264_demuxer = {
"h264",
"raw H264 video format",
0,
};
#ifdef CONFIG_MUXERS
-AVOutputFormat h264_oformat = {
+AVOutputFormat h264_muxer = {
"h264",
"raw H264 video format",
NULL,
};
#endif //CONFIG_MUXERS
-AVInputFormat mpegvideo_iformat = {
+AVInputFormat mpegvideo_demuxer = {
"mpegvideo",
"MPEG video",
0,
};
#ifdef CONFIG_MUXERS
-AVOutputFormat mpeg1video_oformat = {
+AVOutputFormat mpeg1video_muxer = {
"mpeg1video",
"MPEG video",
"video/x-mpeg",
#endif //CONFIG_MUXERS
#ifdef CONFIG_MUXERS
-AVOutputFormat mpeg2video_oformat = {
+AVOutputFormat mpeg2video_muxer = {
"mpeg2video",
"MPEG2 video",
NULL,
};
#endif //CONFIG_MUXERS
-AVInputFormat mjpeg_iformat = {
+AVInputFormat mjpeg_demuxer = {
"mjpeg",
"MJPEG video",
0,
.value = CODEC_ID_MJPEG,
};
+AVInputFormat ingenient_demuxer = {
+ "ingenient",
+ "Ingenient MJPEG",
+ 0,
+ NULL,
+ video_read_header,
+ ingenient_read_packet,
+ raw_read_close,
+ .extensions = "cgi", // FIXME
+ .value = CODEC_ID_MJPEG,
+};
+
#ifdef CONFIG_MUXERS
-AVOutputFormat mjpeg_oformat = {
+AVOutputFormat mjpeg_muxer = {
"mjpeg",
"MJPEG video",
"video/x-mjpeg",
/* pcm formats */
#define PCMINPUTDEF(name, long_name, ext, codec) \
-AVInputFormat pcm_ ## name ## _iformat = {\
+AVInputFormat pcm_ ## name ## _demuxer = {\
#name,\
long_name,\
0,\
.value = codec,\
};
-#if !defined(CONFIG_MUXERS) && defined(CONFIG_DEMUXERS)
-
-#define PCMDEF(name, long_name, ext, codec) \
- PCMINPUTDEF(name, long_name, ext, codec)
-
-#else
-
-#define PCMDEF(name, long_name, ext, codec) \
- PCMINPUTDEF(name, long_name, ext, codec)\
-\
-AVOutputFormat pcm_ ## name ## _oformat = {\
+#define PCMOUTPUTDEF(name, long_name, ext, codec) \
+AVOutputFormat pcm_ ## name ## _muxer = {\
#name,\
long_name,\
NULL,\
raw_write_packet,\
raw_write_trailer,\
};
-#endif //CONFIG_MUXERS
+
+
+#if !defined(CONFIG_MUXERS) && defined(CONFIG_DEMUXERS)
+#define PCMDEF(name, long_name, ext, codec) \
+ PCMINPUTDEF(name, long_name, ext, codec)
+#elif defined(CONFIG_MUXERS) && !defined(CONFIG_DEMUXERS)
+#define PCMDEF(name, long_name, ext, codec) \
+ PCMOUTPUTDEF(name, long_name, ext, codec)
+#elif defined(CONFIG_MUXERS) && defined(CONFIG_DEMUXERS)
+#define PCMDEF(name, long_name, ext, codec) \
+ PCMINPUTDEF(name, long_name, ext, codec)\
+ PCMOUTPUTDEF(name, long_name, ext, codec)
+#else
+#define PCMDEF(name, long_name, ext, codec)
+#endif
#ifdef WORDS_BIGENDIAN
#define BE_DEF(s) s
#endif
-PCMDEF(s16le, "pcm signed 16 bit little endian format",
+PCMDEF(s16le, "pcm signed 16 bit little endian format",
LE_DEF("sw"), CODEC_ID_PCM_S16LE)
-PCMDEF(s16be, "pcm signed 16 bit big endian format",
+PCMDEF(s16be, "pcm signed 16 bit big endian format",
BE_DEF("sw"), CODEC_ID_PCM_S16BE)
-PCMDEF(u16le, "pcm unsigned 16 bit little endian format",
+PCMDEF(u16le, "pcm unsigned 16 bit little endian format",
LE_DEF("uw"), CODEC_ID_PCM_U16LE)
-PCMDEF(u16be, "pcm unsigned 16 bit big endian format",
+PCMDEF(u16be, "pcm unsigned 16 bit big endian format",
BE_DEF("uw"), CODEC_ID_PCM_U16BE)
-PCMDEF(s8, "pcm signed 8 bit format",
+PCMDEF(s8, "pcm signed 8 bit format",
"sb", CODEC_ID_PCM_S8)
-PCMDEF(u8, "pcm unsigned 8 bit format",
+PCMDEF(u8, "pcm unsigned 8 bit format",
"ub", CODEC_ID_PCM_U8)
-PCMDEF(mulaw, "pcm mu law format",
+PCMDEF(mulaw, "pcm mu law format",
"ul", CODEC_ID_PCM_MULAW)
-PCMDEF(alaw, "pcm A law format",
+PCMDEF(alaw, "pcm A law format",
"al", CODEC_ID_PCM_ALAW)
static int rawvideo_read_packet(AVFormatContext *s, AVPacket *pkt)
}
}
-AVInputFormat rawvideo_iformat = {
+AVInputFormat rawvideo_demuxer = {
"rawvideo",
"raw video format",
0,
};
#ifdef CONFIG_MUXERS
-AVOutputFormat rawvideo_oformat = {
+AVOutputFormat rawvideo_muxer = {
"rawvideo",
"raw video format",
NULL,
return 0;
}
-AVOutputFormat null_oformat = {
+AVOutputFormat null_muxer = {
"null",
"null video format",
NULL,
.flags = AVFMT_NOFILE | AVFMT_RAWPICTURE,
};
#endif //CONFIG_MUXERS
-
-#ifndef CONFIG_MUXERS
-#define av_register_output_format(format)
-#endif
-#ifndef CONFIG_DEMUXERS
-#define av_register_input_format(format)
-#endif
-
-int raw_init(void)
-{
-
- av_register_input_format(&shorten_iformat);
-
- av_register_input_format(&ac3_iformat);
- av_register_output_format(&ac3_oformat);
-
- av_register_input_format(&dts_iformat);
-
- av_register_input_format(&h261_iformat);
- av_register_output_format(&h261_oformat);
-
- av_register_input_format(&h263_iformat);
- av_register_output_format(&h263_oformat);
-
- av_register_input_format(&m4v_iformat);
- av_register_output_format(&m4v_oformat);
-
- av_register_input_format(&h264_iformat);
- av_register_output_format(&h264_oformat);
-
- av_register_input_format(&mpegvideo_iformat);
- av_register_output_format(&mpeg1video_oformat);
-
- av_register_output_format(&mpeg2video_oformat);
-
- av_register_input_format(&mjpeg_iformat);
- av_register_output_format(&mjpeg_oformat);
-
- av_register_input_format(&pcm_s16le_iformat);
- av_register_output_format(&pcm_s16le_oformat);
- av_register_input_format(&pcm_s16be_iformat);
- av_register_output_format(&pcm_s16be_oformat);
- av_register_input_format(&pcm_u16le_iformat);
- av_register_output_format(&pcm_u16le_oformat);
- av_register_input_format(&pcm_u16be_iformat);
- av_register_output_format(&pcm_u16be_oformat);
- av_register_input_format(&pcm_s8_iformat);
- av_register_output_format(&pcm_s8_oformat);
- av_register_input_format(&pcm_u8_iformat);
- av_register_output_format(&pcm_u8_oformat);
- av_register_input_format(&pcm_mulaw_iformat);
- av_register_output_format(&pcm_mulaw_oformat);
- av_register_input_format(&pcm_alaw_iformat);
- av_register_output_format(&pcm_alaw_oformat);
-
- av_register_input_format(&rawvideo_iformat);
- av_register_output_format(&rawvideo_oformat);
-
- av_register_output_format(&null_oformat);
- return 0;
-}
projects / ffmpeg / blobdiff