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/*
* multiplex_avi.c -- multiplex frames in an AVI file using avilib.
* (C) 2005-2010 Francesco Romani <fromani at gmail dot com>
*
* This file is part of transcode, a video stream processing tool.
*
* transcode 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.
*
* transcode 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, see <http://www.gnu.org/licenses/>.
*/
#include "transcode.h"
#include "libtc/optstr.h"
#include "libtc/tcmodule-plugin.h"
#include "avilib/avilib.h"
#define MOD_NAME "multiplex_avi.so"
#define MOD_VERSION "v0.0.2 (2005-12-29)"
#define MOD_CAP "create an AVI stream using avilib"
#define MOD_FEATURES \
TC_MODULE_FEATURE_MULTIPLEX|TC_MODULE_FEATURE_VIDEO|TC_MODULE_FEATURE_AUDIO
#define MOD_FLAGS \
TC_MODULE_FLAG_RECONFIGURABLE
/* default FourCC to use if given one isn't known or if it's just absent */
#define DEFAULT_FOURCC "RGB"
static const char avi_help[] = ""
"Overview:\n"
" this module create an AVI stream using avilib.\n"
" AVI streams produced by this module can have a\n"
" maximum of one audio and video track.\n"
" You can add more tracks with further processing.\n"
"Options:\n"
" help produce module overview and options explanations\n";
typedef struct {
avi_t *avifile;
int force_kf; /* boolean flag */
} AVIPrivateData;
static int avi_inspect(TCModuleInstance *self,
const char *param, const char **value)
{
TC_MODULE_SELF_CHECK(self, "inspect");
if (optstr_lookup(param, "help")) {
*value = avi_help;
}
return TC_OK;
}
static int avi_configure(TCModuleInstance *self,
const char *options, vob_t *vob)
{
const char *fcc = NULL;
AVIPrivateData *pd = NULL;
int arate = (vob->mp3frequency != 0)
?vob->mp3frequency :vob->a_rate;
int abitrate = (vob->ex_a_codec == CODEC_PCM)
?(vob->a_rate*4)/1000*8 :vob->mp3bitrate;
TC_MODULE_SELF_CHECK(self, "configure");
TC_MODULE_SELF_CHECK(vob, "configure"); /* hackish? */
pd = self->userdata;
fcc = tc_codec_fourcc(vob->ex_v_codec);
if (fcc == NULL) {
fcc = DEFAULT_FOURCC;
}
if (verbose >= TC_DEBUG) {
tc_log_info(MOD_NAME, "AVI FourCC: '%s'", fcc);
}
if (vob->ex_v_codec == CODEC_RGB || vob->ex_v_codec == TC_CODEC_RGB
|| vob->ex_v_codec == CODEC_YUV || vob->ex_v_codec == TC_CODEC_YUV420P
|| vob->ex_v_codec == CODEC_YUV422 || vob->ex_v_codec == TC_CODEC_YUV422P) {
pd->force_kf = TC_TRUE;
} else {
pd->force_kf = TC_FALSE;
}
pd->avifile = AVI_open_output_file(vob->video_out_file);
if(!pd->avifile) {
tc_log_error(MOD_NAME, "avilib error: %s", AVI_strerror());
return TC_ERROR;
}
AVI_set_video(pd->avifile, vob->ex_v_width, vob->ex_v_height,
vob->ex_fps, fcc);
AVI_set_audio_track(pd->avifile, vob->a_track);
AVI_set_audio(pd->avifile, vob->dm_chan, arate, vob->dm_bits,
vob->ex_a_codec, abitrate);
AVI_set_audio_vbr(pd->avifile, vob->a_vbr);
return TC_OK;
}
static int avi_stop(TCModuleInstance *self)
{
AVIPrivateData *pd = NULL;
TC_MODULE_SELF_CHECK(self, "stop");
pd = self->userdata;
if (pd->avifile != NULL) {
AVI_close(pd->avifile);
pd->avifile = NULL;
}
return TC_OK;
}
static int avi_multiplex(TCModuleInstance *self,
vframe_list_t *vframe, aframe_list_t *aframe)
{
uint32_t size_before, size_after;
int ret;
AVIPrivateData *pd = NULL;
TC_MODULE_SELF_CHECK(self, "multiplex");
pd = self->userdata;
size_before = AVI_bytes_written(pd->avifile);
if (vframe != NULL && vframe->video_len > 0) {
int key = ((vframe->attributes & TC_FRAME_IS_KEYFRAME)
|| pd->force_kf) ?1 :0;
ret = AVI_write_frame(pd->avifile, (const char*)vframe->video_buf,
vframe->video_len, key);
if(ret < 0) {
tc_log_error(MOD_NAME, "avilib error writing video: %s",
AVI_strerror());
return TC_ERROR;
}
}
if (aframe != NULL && aframe->audio_len > 0) {
ret = AVI_write_audio(pd->avifile, (const char*)aframe->audio_buf,
aframe->audio_len);
if (ret < 0) {
tc_log_error(MOD_NAME, "avilib error writing audio: %s",
AVI_strerror());
return TC_ERROR;
}
}
size_after = AVI_bytes_written(pd->avifile);
return (size_after - size_before);
}
static int avi_init(TCModuleInstance *self, uint32_t features)
{
AVIPrivateData *pd = NULL;
TC_MODULE_SELF_CHECK(self, "init");
TC_MODULE_INIT_CHECK(self, MOD_FEATURES, features);
pd = tc_malloc(sizeof(AVIPrivateData));
if (!pd) {
return TC_ERROR;
}
pd->avifile = NULL;
pd->force_kf = TC_FALSE;
if (verbose) {
tc_log_info(MOD_NAME, "%s %s", MOD_VERSION, MOD_CAP);
if (verbose >= TC_DEBUG) {
tc_log_info(MOD_NAME, "max AVI-file size limit = %lu bytes",
(unsigned long)AVI_max_size());
}
}
self->userdata = pd;
return TC_OK;
}
static int avi_fini(TCModuleInstance *self)
{
TC_MODULE_SELF_CHECK(self, "fini");
avi_stop(self);
tc_free(self->userdata);
self->userdata = NULL;
return TC_OK;
}
/*************************************************************************/
static const TCCodecID avi_codecs_in[] = {
TC_CODEC_PCM, TC_CODEC_AC3, TC_CODEC_MP2, TC_CODEC_MP3,
TC_CODEC_AAC, /* FIXME: that means asking for troubles */
TC_CODEC_YUV420P, TC_CODEC_DV,
TC_CODEC_DIVX3, TC_CODEC_DIVX4, TC_CODEC_DIVX5, TC_CODEC_XVID,
TC_CODEC_H264, /* FIXME: that means asking for troubles */
TC_CODEC_MPEG4VIDEO, TC_CODEC_MPEG1VIDEO, TC_CODEC_MJPEG,
TC_CODEC_LZO1, TC_CODEC_LZO2, TC_CODEC_RGB,
TC_CODEC_ERROR
};
static const TCFormatID avi_formats_out[] = { TC_FORMAT_AVI, TC_FORMAT_ERROR };
/* a multiplexor is at the end of pipeline */
TC_MODULE_MPLEX_FORMATS_CODECS(avi);
TC_MODULE_INFO(avi);
static const TCModuleClass avi_class = {
TC_MODULE_CLASS_HEAD(avi),
.init = avi_init,
.fini = avi_fini,
.configure = avi_configure,
.stop = avi_stop,
.inspect = avi_inspect,
.multiplex = avi_multiplex,
};
TC_MODULE_ENTRY_POINT(avi)
/*************************************************************************/
/*
* Local variables:
* c-file-style: "stroustrup"
* c-file-offsets: ((case-label . *) (statement-case-intro . *))
* indent-tabs-mode: nil
* End:
*
* vim: expandtab shiftwidth=4:
*/
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