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/*
* Copyright (C) 2005-2010 Mbdsys SAS
*
* This 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,
* or (at your option) any later version.
*
* This 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 dpkg; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* This is a wrapper around avcodec-powered phcodecs
* It came to mind when i realized the only stuff that was changing between
* two libavcodec codecs (in terms of usage) was the id and certain
* parameters.
*
*/
#define HAVE_MMX
#include <osip2/osip_mt.h>
#include <osip2/osip.h>
#include <ortp.h>
#include <telephonyevents.h>
#include <time.h>
#include <fcntl.h>
#include <libavcodec/avcodec.h>
#include <ortp.h>
#include <osip2/osip_mt.h>
#include <osipparser2/osip_list.h>
#include <webcam/webcam.h>
#include "phcodec.h"
#include "phapi.h"
#include "phcall.h"
#include "phmedia.h"
#include "phcodec-avcodec-wrapper.h"
#include "phmstream.h"
#include "phvstream.h"
void ph_avcodec_wrapper_init()
{
avcodec_register_all();
}
int phcodec_avcodec_decode(void *ctx, const void *src,
int srcsize, void *dst, int dstsize) {
int dec_len, got_picture = 0;
ph_avcodec_decoder_ctx_t * decoder_t = (ph_avcodec_decoder_ctx_t *) ctx;
AVPacket avpkt;
av_init_packet(&avpkt);
avpkt.data = (uint8_t *)src;
avpkt.size = srcsize;
avpkt.flags = AV_PKT_FLAG_KEY;
dec_len = avcodec_decode_video2(decoder_t->context,
dst, &got_picture, &avpkt);
if (got_picture)
{
return dec_len;
}
return 0;
}
int phcodec_avcodec_encode(void *ctx, const void *src,
int srcsize, void *dst, int dstsize) {
ph_avcodec_encoder_ctx_t * encoder_t = (ph_avcodec_encoder_ctx_t *) ctx;
AVPacket pkt;
int ret, got_output;
pkt.data = dst;
pkt.size = dstsize;
ret = avcodec_encode_video2(encoder_t->context,
&pkt, (AVFrame *)src, &got_output);
if (ret < 0)
return ret;
return got_output ? pkt.size : 0;
}
int phcodec_avcodec_encoder_init(ph_avcodec_encoder_ctx_t *encoder_t, void *ctx, void *opaque) {
ph_avcodec_meta_ctx_t *meta_t = (ph_avcodec_meta_ctx_t *) ctx;
int dest_width, dest_height;
dest_width = PHMEDIA_VIDEO_FRAME_WIDTH;
dest_height = PHMEDIA_VIDEO_FRAME_HEIGHT;
encoder_t->context = avcodec_alloc_context3(NULL);
encoder_t->encoder = avcodec_find_encoder(
meta_t->avcodec_encoder_id);
if (!encoder_t->encoder)
{
if (!encoder_t->encoder)
{
#ifdef DEBUG
printf("Couldn't find coded with id %d\n",
meta_t->avcodec_encoder_id);
#endif
return -1;
}
}
encoder_t->context->pix_fmt = PIX_FMT_YUV420P;
encoder_t->context->width = dest_width;
encoder_t->context->height = dest_height;
// time base unit for the presentation timestamps = millisecond
encoder_t->context->time_base.num = 1;
encoder_t->context->time_base.den = 1000;
encoder_t->context->max_b_frames = 0;
//encoder_t->context->dsp_mask = (FF_MM_MMX|FF_MM_MMXEXT|FF_MM_SSE|FF_MM_SSE2);
//encoder_t->context->dsp_mask = (FF_MM_FORCE|FF_MM_MMX|FF_MM_MMXEXT|FF_MM_SSE|FF_MM_SSE2);
encoder_t->context->dct_algo = FF_DCT_AUTO;
encoder_t->context->idct_algo = FF_IDCT_AUTO;
encoder_t->context->opaque = opaque;
//encoder_t->context->rtp_mode = 1;
encoder_t->context->rtp_payload_size = 1000;
encoder_t->context->rtp_callback = phcodec_avcodec_video_rtp_callback;
encoder_t->resized_pic = avcodec_alloc_frame();
encoder_t->sampled_frame = avcodec_alloc_frame();
return 0;
}
int phcodec_avcodec_decoder_init(ph_avcodec_decoder_ctx_t * decoder_t, void *ctx) {
ph_avcodec_meta_ctx_t *meta_t = (ph_avcodec_meta_ctx_t *) ctx;
int dest_width, dest_height;
dest_width = PHMEDIA_VIDEO_FRAME_WIDTH;
dest_height = PHMEDIA_VIDEO_FRAME_HEIGHT;
decoder_t->context = avcodec_alloc_context3(NULL);
decoder_t->pictureIn = avcodec_alloc_frame();
decoder_t->decoder = avcodec_find_decoder(meta_t->avcodec_decoder_id);
if (!decoder_t->decoder)
{
return -1;
}
decoder_t->context->width = dest_width;
decoder_t->context->height = dest_height;
//decoder_t->context->dsp_mask = (FF_MM_MMX|FF_MM_MMXEXT|FF_MM_SSE|FF_MM_SSE2);
decoder_t->context->idct_algo = FF_IDCT_AUTO;
if (avcodec_open2(decoder_t->context, decoder_t->decoder, NULL) < 0)
{
return -1;
}
return 0;
}
void phcodec_avcodec_video_rtp_callback(struct AVCodecContext * context, void *data,
int size, int packetNumber ) {
phvstream_t *video_stream = (phvstream_t *)context->opaque;
// time base unit of ->pts has been defined as "millisecond"
// ts = fix_random + sum (90000 / local_fps)
// => ts = 0 + sum (90 * delta_ts_millisec)
uint32_t ts = (uint32_t) ( 90 * context->coded_frame->pts );
int eof;
/*
* Set the P bit of h263 header to 1 (start of picture)
*
*/
/*
if (video_stream->outq_count == 0) {
((unsigned char *) data)[1] |= 32;
}
*/
video_stream->mbCounter += packetNumber;
eof = (video_stream->mbCounter == QCIF_MACROBLOCKS_IN_ONE_FRAME);
if (eof)
{
video_stream->mbCounter = 0;
}
video_stream->rtpCallback(video_stream, data, size, ts, eof);
}
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