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Commit 9aeeeb63 authored by Fabrice Bellard's avatar Fabrice Bellard
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Initial revision 


Originally committed as revision 2 to svn://svn.ffmpeg.org/ffmpeg/trunk
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COPYING 0 → 100644
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
675 Mass Ave, Cambridge, MA 02139, USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
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to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
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<one line to give the program's name and a brief idea of what it does.>
Copyright (C) 19yy <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
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Gnomovision version 69, Copyright (C) 19yy name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
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The hypothetical commands `show w' and `show c' should show the appropriate
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You should also get your employer (if you work as a programmer) or your
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necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
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consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.
Makefile 0 → 100644
View file @ 9aeeeb63
CFLAGS= -O2 -Wall -g -I./libav
LDFLAGS= -g -L./libav
PROG= ffmpeg ffserver
all: lib $(PROG)
lib:
make -C libav all
ffmpeg: rmenc.o mpegmux.o asfenc.o jpegenc.o swfenc.o udp.o formats.o grab.o ffmpeg.o libav/libav.a
gcc $(LDFLAGS) -o $@ $^ -lav -lm
ffserver: rmenc.o mpegmux.o asfenc.o jpegenc.o swfenc.o formats.o grab.o ffserver.o libav/libav.a
gcc $(LDFLAGS) -o $@ $^ -lav -lpthread -lm
%.o: %.c
gcc $(CFLAGS) -c -o $@ $<
clean:
make -C libav clean
rm -f *.o *~ gmon.out TAGS $(PROG)
etags:
etags *.[ch] libav/*.[ch]
tar:
(cd .. ; tar zcvf ffmpeg-0.3.tgz ffmpeg --exclude CVS --exclude TAGS )
README 0 → 100644
View file @ 9aeeeb63
FFmpeg version 0.9 - (c) 2000 Gerard Lantau.
1) Introduction
---------------
ffmpeg is a hyper fast realtime audio/video encoder and streaming
server. It can grab from a standard Video4Linux video source and
convert it into several file formats based on DCT/motion compensation
encoding. Sound is compressed in MPEG audio layer 2 or using an AC3
compatible stream.
What makes ffmpeg interesting ?
- Innovative streaming technology : multiformat, real time encoding,
simple configuration.
- Simple and efficient video encoder: outputs MPEG1, H263 and Real
Video(tm) compatible bitstreams using the same encoder core.
- Real time encoding (25 fps in 352x288 on a K6 500) using the video4linux API.
- Generates I and P frames, which means it is far better than a MJPEG
encoder.
- Hyper fast MPEG audio layer 2 compression (50 times faster than
realtime on a K6 500).
- Hyper fast AC3 compatible encoder.
- simple and very small portable C source code, easy to understand and
to modify. It be may the smallest decent MPEG encoder :-)
ffmpeg is made of two programs:
* ffmpeg: soft VCR which encodes in real time to several formats.
* ffserver: live broadcast streaming server based on the ffmpeg core
encoders.
2) Documentation
----------------
read doc/ffmpeg.txt and doc/ffserver.txt to learn the basic features.
read ffmpeg
3) Licensing:
------------
* See the file COPYING. ffmpeg is licensed under the GNU General
Public License.
* Source code from third parties: The DCT code comes from the Berkeley
MPEG decoder and the JPEG encoder.
* This code should be patent free since it is very simple. I took care
to use the same video encoder core for all formats to show that they
really ARE THE SAME except for the encoding huffman codes.
Gerard Lantau (glantau@users.sourceforge.net).
asfenc.c 0 → 100644
View file @ 9aeeeb63
/*
* ASF compatible encoder
* Copyright (c) 2000 Gerard Lantau.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdlib.h>
#include <stdio.h>
#include <netinet/in.h>
#include <string.h>
#include "mpegenc.h"
#define PACKET_SIZE 3200
#define PACKET_HEADER_SIZE 12
#define FRAME_HEADER_SIZE 17
typedef struct {
AVEncodeContext *enc;
int num;
int seq;
} ASFStream;
typedef struct {
int is_streamed; /* true if streamed */
int seqno;
int packet_size;
ASFStream streams[2];
ASFStream *audio_stream, *video_stream;
int nb_streams;
/* non streamed additonnal info */
int file_size_offset;
int data_offset;
/* packet filling */
int packet_size_left;
int packet_timestamp_start;
int packet_timestamp_end;
int packet_nb_frames;
UINT8 packet_buf[PACKET_SIZE];
PutByteContext pb;
} ASFContext;
typedef struct {
UINT32 v1;
UINT16 v2;
UINT16 v3;
UINT8 v4[8];
} GUID;
static const GUID asf_header = {
0x75B22630, 0x668E, 0x11CF, { 0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C },
};
static const GUID file_header = {
0x8CABDCA1, 0xA947, 0x11CF, { 0x8E, 0xE4, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65 },
};
static const GUID stream_header = {
0xB7DC0791, 0xA9B7, 0x11CF, { 0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65 },
};
static const GUID audio_stream = {
0xF8699E40, 0x5B4D, 0x11CF, { 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B },
};
static const GUID audio_conceal_none = {
0x49f1a440, 0x4ece, 0x11d0, { 0xa3, 0xac, 0x00, 0xa0, 0xc9, 0x03, 0x48, 0xf6 },
};
static const GUID video_stream = {
0xBC19EFC0, 0x5B4D, 0x11CF, { 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B },
};
static const GUID video_conceal_none = {
0x20FB5700, 0x5B55, 0x11CF, { 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B },
};
static const GUID comment_header = {
0x86D15240, 0x311D, 0x11D0, { 0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6 },
};
static const GUID data_header = {
0x75b22636, 0x668e, 0x11cf, { 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c },
};
static const GUID packet_guid = {
0xF656CCE1, 0x03B3, 0x11D4, { 0xBE, 0xA2, 0x00, 0xA0, 0xCC, 0x3D, 0x72, 0x74 },
};
/* I am not a number !!! This GUID is the one found on the PC used to
generate the stream */
static const GUID my_guid = {
0x12345678, 0xA947, 0x11CF, { 0x31, 0x41, 0x59, 0x26, 0x20, 0x20, 0x20, 0x20 },
};
static void put_guid(PutByteContext *s, const GUID *g)
{
int i;
put_le32(s, g->v1);
put_le16(s, g->v2);
put_le16(s, g->v3);
for(i=0;i<8;i++)
put_byte(s, g->v4[i]);
}
#if 0
static void put_str16(PutByteContext *s, const char *tag)
{
put_le16(s,strlen(tag));
while (*tag) {
put_le16(s, *tag++);
}
}
#endif
/* write an asf chunk (only used in streaming case) */
static void put_chunk(AVFormatContext *s, int type, int payload_length)
{
ASFContext *asf = s->priv_data;
PutByteContext *pb = &s->pb;
int length;
length = payload_length + 8;
put_le16(pb, type);
put_le16(pb, length);
put_le32(pb, asf->seqno);
put_le16(pb, 0); /* unknown bytes */
put_le16(pb, length);
asf->seqno++;
}
static int asf_write_header(AVFormatContext *s)
{
PutByteContext *pb = &s->pb;
ASFContext *asf;
int header_size, n, extra_size, extra_size2, i, wav_extra_size;
AVEncodeContext *enc;
long long header_offset, cur_pos;
asf = malloc(sizeof(ASFContext));
if (!asf)
return -1;
memset(asf, 0, sizeof(ASFContext));
s->priv_data = asf;
asf->packet_size = PACKET_SIZE;
if (!s->is_streamed) {
put_guid(pb, &asf_header);
put_le64(pb, 0); /* header length, will be patched after */
put_le32(pb, 6); /* ??? */
put_byte(pb, 1); /* ??? */
put_byte(pb, 2); /* ??? */
} else {
put_chunk(s, 0x4824, 0); /* start of stream (length will be patched later) */
}
/* file header */
header_offset = put_pos(pb);
put_guid(pb, &file_header);
put_le64(pb, 24 + 80);
put_guid(pb, &my_guid);
asf->file_size_offset = put_pos(pb);
put_le64(pb, 0); /* file size (patched after if not streamed) */
put_le64(pb, 0); /* file time : 1601 :-) */
put_le64(pb, 0x283); /* ??? */
put_le64(pb, 0); /* stream 0 length in us */
put_le64(pb, 0); /* stream 1 length in us */
put_le32(pb, 0x0c1c); /* ??? */
put_le32(pb, 0); /* ??? */
put_le32(pb, 2); /* ??? */
put_le32(pb, asf->packet_size); /* packet size */
put_le32(pb, asf->packet_size); /* ??? */
put_le32(pb, 0x03e800); /* ??? */
/* stream headers */
n = 0;
for(i=0;i<2;i++) {
if (i == 0)
enc = s->audio_enc;
else
enc = s->video_enc;
if (!enc)
continue;
asf->streams[n].num = i;
asf->streams[n].seq = 0;
asf->streams[n].enc = enc;
switch(enc->codec->type) {