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R3D REDCODE demuxer

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Originally committed as revision 16692 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2009-01-20 07:42:14 +00:00
parent c5125e3994
commit 7eb68edba7
6 changed files with 391 additions and 2 deletions
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1
Changelog
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@ -144,6 +144,7 @@ version <next>
- RV30 and RV40 decoder
- QCELP / PureVoice decoder
- hybrid WavPack support
- R3D REDCODE demuxer
version 0.4.9-pre1:

1
MAINTAINERS
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@ -272,6 +272,7 @@ Muxers/Demuxers:
oggparseogm.c Mans Rullgard
psxstr.c Mike Melanson
pva.c Ivo van Poorten
r3d.c Baptiste Coudurier
raw.c Michael Niedermayer
rl2.c Sascha Sommer
rm.c Roberto Togni

2
doc/general.texi
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@ -123,6 +123,8 @@ library:
@item raw MPEG-4 video @tab X @tab X
@item raw PCM 8/16/32 bits, 32/64-bit floating point, mu-law/A-law @tab X @tab X
@item raw Shorten audio @tab @tab X
@item R3D REDCODE @tab @tab X
@tab File format used by RED Digital cameras, contains JPEG 2000 frames and PCM audio.
@item RealMedia @tab X @tab X
@item RL2 @tab @tab X
@tab Audio and video format used in some games by Entertainment Software Partners.

1
libavformat/allformats.c
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@ -160,6 +160,7 @@ void av_register_all(void)
REGISTER_MUXDEMUX (PCM_U8, pcm_u8);
REGISTER_MUXER (PSP, psp);
REGISTER_DEMUXER (PVA, pva);
REGISTER_DEMUXER (R3D, r3d);
REGISTER_MUXDEMUX (RAWVIDEO, rawvideo);
REGISTER_DEMUXER (REDIR, redir);
REGISTER_DEMUXER (RL2, rl2);

4
libavformat/avformat.h
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@ -22,8 +22,8 @@
#define AVFORMAT_AVFORMAT_H
#define LIBAVFORMAT_VERSION_MAJOR 52
#define LIBAVFORMAT_VERSION_MINOR 24
#define LIBAVFORMAT_VERSION_MICRO 1
#define LIBAVFORMAT_VERSION_MINOR 25
#define LIBAVFORMAT_VERSION_MICRO 0
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \

384
libavformat/r3d.c Normal file
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@ -0,0 +1,384 @@
/*
* R3D REDCODE demuxer
* Copyright (c) 2008 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
*
* 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
*/
//#define DEBUG
#include "libavutil/intreadwrite.h"
#include "avformat.h"
typedef struct {
unsigned video_offsets_count;
unsigned *video_offsets;
unsigned rdvo_offset;
} R3DContext;
typedef struct {
unsigned size;
uint32_t tag;
uint64_t offset;
} Atom;
static int read_atom(AVFormatContext *s, Atom *atom)
{
atom->offset = url_ftell(s->pb);
atom->size = get_be32(s->pb);
if (atom->size < 8)
return -1;
atom->tag = get_le32(s->pb);
dprintf(s, "atom %d %.4s offset %#llx\n",
atom->size, (char*)&atom->tag, atom->offset);
return atom->size;
}
static int r3d_read_red1(AVFormatContext *s)
{
AVStream *st = av_new_stream(s, 0);
int tmp, tmp2;
if (!st)
return -1;
st->codec->codec_type = CODEC_TYPE_VIDEO;
st->codec->codec_id = CODEC_ID_JPEG2000;
tmp = get_byte(s->pb); // major version
tmp2 = get_byte(s->pb); // minor version
dprintf(s, "version %d.%d\n", tmp, tmp2);
tmp = get_be16(s->pb); // unknown
dprintf(s, "unknown1 %d\n", tmp);
tmp = get_be32(s->pb);
av_set_pts_info(st, 32, 1, tmp);
tmp = get_be32(s->pb); // filenum
dprintf(s, "filenum %d\n", tmp);
url_fskip(s->pb, 32); // unknown
st->codec->width = get_be32(s->pb);
st->codec->height = get_be32(s->pb);
tmp = get_be16(s->pb); // unknown
dprintf(s, "unknown2 %d\n", tmp);
st->codec->time_base.den = get_be16(s->pb);
st->codec->time_base.num = get_be16(s->pb);
tmp = get_byte(s->pb); // audio channels
dprintf(s, "audio channels %d\n", tmp);
if (tmp > 0) {
AVStream *ast = av_new_stream(s, 1);
ast->codec->codec_type = CODEC_TYPE_AUDIO;
ast->codec->codec_id = CODEC_ID_PCM_S32BE;
ast->codec->channels = tmp;
av_set_pts_info(ast, 32, 1, st->time_base.den);
}
st->filename = av_mallocz(258);
if (!st->filename)
return AVERROR(ENOMEM);
get_buffer(s->pb, st->filename, 257);
dprintf(s, "filename %s\n", st->filename);
dprintf(s, "resolution %dx%d\n", st->codec->width, st->codec->height);
dprintf(s, "timescale %d\n", st->time_base.den);
dprintf(s, "frame rate %d/%d\n",
st->codec->time_base.num, st->codec->time_base.den);
return 0;
}
static int r3d_read_rdvo(AVFormatContext *s, Atom *atom)
{
R3DContext *r3d = s->priv_data;
AVStream *st = s->streams[0];
int i;
r3d->video_offsets_count = (atom->size - 8) / 4;
r3d->video_offsets = av_malloc(atom->size);
if (!r3d->video_offsets)
return AVERROR(ENOMEM);
for (i = 0; i < r3d->video_offsets_count; i++) {
r3d->video_offsets[i] = get_be32(s->pb);
if (!r3d->video_offsets[i]) {
r3d->video_offsets_count = i;
break;
}
dprintf(s, "video offset %d: %#x\n", i, r3d->video_offsets[i]);
}
if (st->codec->time_base.den)
st->duration = (uint64_t)r3d->video_offsets_count*
st->time_base.den*st->codec->time_base.num/st->codec->time_base.den;
dprintf(s, "duration %lld\n", st->duration);
return 0;
}
static void r3d_read_reos(AVFormatContext *s)
{
R3DContext *r3d = s->priv_data;
int tmp;
r3d->rdvo_offset = get_be32(s->pb);
get_be32(s->pb); // rdvs offset
get_be32(s->pb); // rdao offset
get_be32(s->pb); // rdas offset
tmp = get_be32(s->pb);
dprintf(s, "num video chunks %d\n", tmp);
tmp = get_be32(s->pb);
dprintf(s, "num audio chunks %d\n", tmp);
url_fskip(s->pb, 6*4);
}
static int r3d_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
R3DContext *r3d = s->priv_data;
Atom atom;
int ret;
if (read_atom(s, &atom) < 0) {
av_log(s, AV_LOG_ERROR, "error reading atom\n");
return -1;
}
if (atom.tag == MKTAG('R','E','D','1')) {
if ((ret = r3d_read_red1(s)) < 0) {
av_log(s, AV_LOG_ERROR, "error parsing 'red1' atom\n");
return ret;
}
} else {
av_log(s, AV_LOG_ERROR, "could not find 'red1' atom\n");
return -1;
}
s->data_offset = url_ftell(s->pb);
dprintf(s, "data offset %#llx\n", s->data_offset);
if (url_is_streamed(s->pb))
return 0;
// find REOB/REOF/REOS to load index
url_fseek(s->pb, url_fsize(s->pb)-48-8, SEEK_SET);
if (read_atom(s, &atom) < 0)
av_log(s, AV_LOG_ERROR, "error reading end atom\n");
if (atom.tag != MKTAG('R','E','O','B') &&
atom.tag != MKTAG('R','E','O','F') &&
atom.tag != MKTAG('R','E','O','S'))
goto out;
r3d_read_reos(s);
if (r3d->rdvo_offset) {
url_fseek(s->pb, r3d->rdvo_offset, SEEK_SET);
if (read_atom(s, &atom) < 0)
av_log(s, AV_LOG_ERROR, "error reading 'rdvo' atom\n");
if (atom.tag == MKTAG('R','D','V','O')) {
if (r3d_read_rdvo(s, &atom) < 0)
av_log(s, AV_LOG_ERROR, "error parsing 'rdvo' atom\n");
}
}
out:
url_fseek(s->pb, s->data_offset, SEEK_SET);
return 0;
}
static int r3d_read_redv(AVFormatContext *s, AVPacket *pkt, Atom *atom)
{
AVStream *st = s->streams[0];
int tmp, tmp2;
uint64_t pos = url_ftell(s->pb);
unsigned dts;
dts = get_be32(s->pb);
tmp = get_be32(s->pb);
dprintf(s, "frame num %d\n", tmp);
tmp = get_byte(s->pb); // major version
tmp2 = get_byte(s->pb); // minor version
dprintf(s, "version %d.%d\n", tmp, tmp2);
tmp = get_be16(s->pb); // unknown
dprintf(s, "unknown %d\n", tmp);
if (tmp > 4) {
tmp = get_be16(s->pb); // unknown
dprintf(s, "unknown %d\n", tmp);
tmp = get_be16(s->pb); // unknown
dprintf(s, "unknown %d\n", tmp);
tmp = get_be32(s->pb);
dprintf(s, "width %d\n", tmp);
tmp = get_be32(s->pb);
dprintf(s, "height %d\n", tmp);
tmp = get_be32(s->pb);
dprintf(s, "metadata len %d\n", tmp);
}
tmp = atom->size - 8 - (url_ftell(s->pb) - pos);
if (tmp < 0)
return -1;
if (av_get_packet(s->pb, pkt, tmp) != tmp) {
av_log(s, AV_LOG_ERROR, "error reading video packet\n");
return -1;
}
pkt->stream_index = 0;
pkt->dts = dts;
if (st->codec->time_base.den)
pkt->duration = (uint64_t)st->time_base.den*
st->codec->time_base.num/st->codec->time_base.den;
dprintf(s, "pkt dts %lld duration %d\n", pkt->dts, pkt->duration);
return 0;
}
static int r3d_read_reda(AVFormatContext *s, AVPacket *pkt, Atom *atom)
{
AVStream *st = s->streams[1];
int tmp, tmp2, samples, size;
uint64_t pos = url_ftell(s->pb);
unsigned dts;
dts = get_be32(s->pb);
st->codec->sample_rate = get_be32(s->pb);
samples = get_be32(s->pb);
tmp = get_be32(s->pb);
dprintf(s, "packet num %d\n", tmp);
tmp = get_be16(s->pb); // unkown
dprintf(s, "unknown %d\n", tmp);
tmp = get_byte(s->pb); // major version
tmp2 = get_byte(s->pb); // minor version
dprintf(s, "version %d.%d\n", tmp, tmp2);
tmp = get_be32(s->pb); // unknown
dprintf(s, "unknown %d\n", tmp);
size = atom->size - 8 - (url_ftell(s->pb) - pos);
if (size < 0)
return -1;
if (av_get_packet(s->pb, pkt, size) != size) {
av_log(s, AV_LOG_ERROR, "error reading video packet\n");
return -1;
}
pkt->stream_index = 1;
pkt->dts = dts;
pkt->duration = av_rescale(samples, st->time_base.den, st->codec->sample_rate);
dprintf(s, "pkt dts %lld duration %d samples %d sample rate %d\n",
pkt->dts, pkt->duration, samples, st->codec->sample_rate);
return 0;
}
static int r3d_read_packet(AVFormatContext *s, AVPacket *pkt)
{
Atom atom;
int err = 0;
while (!err) {
if (read_atom(s, &atom) < 0) {
err = -1;
break;
}
switch (atom.tag) {
case MKTAG('R','E','D','V'):
if (s->streams[0]->discard == AVDISCARD_ALL)
goto skip;
if (!(err = r3d_read_redv(s, pkt, &atom)))
return 0;
break;
case MKTAG('R','E','D','A'):
if (s->nb_streams < 2)
return -1;
if (s->streams[1]->discard == AVDISCARD_ALL)
goto skip;
if (!(err = r3d_read_reda(s, pkt, &atom)))
return 0;
break;
default:
skip:
url_fskip(s->pb, atom.size-8);
}
}
return err;
}
static int r3d_probe(AVProbeData *p)
{
if (AV_RL32(p->buf + 4) == MKTAG('R','E','D','1'))
return AVPROBE_SCORE_MAX;
return 0;
}
static int r3d_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
{
AVStream *st = s->streams[0]; // video stream
R3DContext *r3d = s->priv_data;
int frame_num;
if (!st->codec->time_base.num || !st->time_base.den)
return -1;
frame_num = sample_time*st->codec->time_base.den/
((int64_t)st->codec->time_base.num*st->time_base.den);
dprintf(s, "seek frame num %d timestamp %lld\n", frame_num, sample_time);
if (frame_num < r3d->video_offsets_count) {
url_fseek(s->pb, r3d->video_offsets_count, SEEK_SET);
} else {
av_log(s, AV_LOG_ERROR, "could not seek to frame %d\n", frame_num);
return -1;
}
return 0;
}
static int r3d_close(AVFormatContext *s)
{
R3DContext *r3d = s->priv_data;
av_freep(&r3d->video_offsets);
return 0;
}
AVInputFormat r3d_demuxer = {
"r3d",
NULL_IF_CONFIG_SMALL("REDCODE R3D format"),
sizeof(R3DContext),
r3d_probe,
r3d_read_header,
r3d_read_packet,
r3d_close,
r3d_seek,
};