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/* $Id: ffmpeg_util.c 4158 2012-06-06 09:56:14Z nanang $ */
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* Copyright (C) 2010-2011 Teluu Inc. (http://www.teluu.com)
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#include <pjmedia/types.h>
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#include <pj/string.h>
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#if PJMEDIA_HAS_LIBAVFORMAT && PJMEDIA_HAS_LIBAVUTIL
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#include "ffmpeg_util.h"
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#include <libavformat/avformat.h>
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#define MAKE_VER(mj,mn,mi) ((mj << 16) | (mn << 8) | (mi << 0))
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#define VER_AT_LEAST(mj,mn,mi) (MAKE_VER(LIBAVUTIL_VERSION_MAJOR, \
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LIBAVUTIL_VERSION_MINOR, \
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LIBAVUTIL_VERSION_MICRO) >= \
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/* Conversion table between pjmedia_format_id and PixelFormat */
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static const struct ffmpeg_fmt_table_t
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} ffmpeg_fmt_table[] =
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{ PJMEDIA_FORMAT_RGBA, PIX_FMT_RGBA},
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{ PJMEDIA_FORMAT_RGB24,PIX_FMT_BGR24},
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{ PJMEDIA_FORMAT_BGRA, PIX_FMT_BGRA},
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#if VER_AT_LEAST(51,20,1)
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{ PJMEDIA_FORMAT_GBRP, PIX_FMT_GBR24P},
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{ PJMEDIA_FORMAT_AYUV, PIX_FMT_NONE},
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{ PJMEDIA_FORMAT_YUY2, PIX_FMT_YUYV422},
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{ PJMEDIA_FORMAT_UYVY, PIX_FMT_UYVY422},
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{ PJMEDIA_FORMAT_I420, PIX_FMT_YUV420P},
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//{ PJMEDIA_FORMAT_YV12, PIX_FMT_YUV420P},
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{ PJMEDIA_FORMAT_I422, PIX_FMT_YUV422P},
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{ PJMEDIA_FORMAT_I420JPEG, PIX_FMT_YUVJ420P},
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{ PJMEDIA_FORMAT_I422JPEG, PIX_FMT_YUVJ422P},
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/* Conversion table between pjmedia_format_id and CodecID */
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static const struct ffmpeg_codec_table_t
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enum CodecID codec_id;
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} ffmpeg_codec_table[] =
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{PJMEDIA_FORMAT_H261, CODEC_ID_H261},
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{PJMEDIA_FORMAT_H263, CODEC_ID_H263},
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{PJMEDIA_FORMAT_H263P, CODEC_ID_H263P},
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{PJMEDIA_FORMAT_H264, CODEC_ID_H264},
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{PJMEDIA_FORMAT_MPEG1VIDEO, CODEC_ID_MPEG1VIDEO},
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{PJMEDIA_FORMAT_MPEG2VIDEO, CODEC_ID_MPEG2VIDEO},
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{PJMEDIA_FORMAT_MPEG4, CODEC_ID_MPEG4},
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{PJMEDIA_FORMAT_MJPEG, CODEC_ID_MJPEG}
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static int pjmedia_ffmpeg_ref_cnt;
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static void ffmpeg_log_cb(void* ptr, int level, const char* fmt, va_list vl);
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void pjmedia_ffmpeg_add_ref()
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if (pjmedia_ffmpeg_ref_cnt++ == 0) {
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av_log_set_level(AV_LOG_ERROR);
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av_log_set_callback(&ffmpeg_log_cb);
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void pjmedia_ffmpeg_dec_ref()
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if (pjmedia_ffmpeg_ref_cnt-- == 1) {
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/* How to shutdown ffmpeg? */
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if (pjmedia_ffmpeg_ref_cnt < 0) pjmedia_ffmpeg_ref_cnt = 0;
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static void ffmpeg_log_cb(void* ptr, int level, const char* fmt, va_list vl)
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const char *LOG_SENDER = "ffmpeg";
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enum { LOG_LEVEL = 5 };
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int bufsize = sizeof(buf), len;
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/* Custom callback needs to filter log level by itself */
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if (level > av_log_get_level())
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/* Add original ffmpeg sender to log format */
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AVClass* avc = *(AVClass**)ptr;
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len = pj_ansi_snprintf(buf, bufsize, "%s: ", avc->item_name(ptr));
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/* Copy original log format */
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len = pj_ansi_strlen(fmt);
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pj_memcpy(buf+sizeof(buf)-bufsize, fmt, len);
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/* Trim log format */
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pj_strset(&fmt_st, buf, sizeof(buf)-bufsize);
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pj_strrtrim(&fmt_st);
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buf[fmt_st.slen] = '\0';
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pj_log(LOG_SENDER, LOG_LEVEL, buf, vl);
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pj_status_t pjmedia_format_id_to_PixelFormat(pjmedia_format_id fmt_id,
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enum PixelFormat *pixel_format)
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for (i=0; i<PJ_ARRAY_SIZE(ffmpeg_fmt_table); ++i) {
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const struct ffmpeg_fmt_table_t *t = &ffmpeg_fmt_table[i];
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if (t->id==fmt_id && t->pf != PIX_FMT_NONE) {
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*pixel_format = t->pf;
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*pixel_format = PIX_FMT_NONE;
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pj_status_t PixelFormat_to_pjmedia_format_id(enum PixelFormat pf,
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pjmedia_format_id *fmt_id)
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for (i=0; i<PJ_ARRAY_SIZE(ffmpeg_fmt_table); ++i) {
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const struct ffmpeg_fmt_table_t *t = &ffmpeg_fmt_table[i];
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if (fmt_id) *fmt_id = t->id;
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pj_status_t pjmedia_format_id_to_CodecID(pjmedia_format_id fmt_id,
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enum CodecID *codec_id)
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for (i=0; i<PJ_ARRAY_SIZE(ffmpeg_codec_table); ++i) {
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const struct ffmpeg_codec_table_t *t = &ffmpeg_codec_table[i];
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if (t->id==fmt_id && t->codec_id != PIX_FMT_NONE) {
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*codec_id = t->codec_id;
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*codec_id = PIX_FMT_NONE;
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pj_status_t CodecID_to_pjmedia_format_id(enum CodecID codec_id,
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pjmedia_format_id *fmt_id)
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for (i=0; i<PJ_ARRAY_SIZE(ffmpeg_codec_table); ++i) {
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const struct ffmpeg_codec_table_t *t = &ffmpeg_codec_table[i];
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if (t->codec_id == codec_id) {
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if (fmt_id) *fmt_id = t->id;
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# pragma comment( lib, "avformat.lib")
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# pragma comment( lib, "avutil.lib")
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#endif /* #if PJMEDIA_HAS_LIBAVFORMAT && PJMEDIA_HAS_LIBAVUTIL */