431 lines
13 KiB
C++
431 lines
13 KiB
C++
/*
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* ZoneMinder FFMPEG implementation, $Date$, $Revision$
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* Copyright (C) 2001-2008 Philip Coombes
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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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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*
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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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*/
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#include "zm_ffmpeg.h"
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#include "zm_image.h"
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#include "zm_rgb.h"
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#if HAVE_LIBAVCODEC || HAVE_LIBAVUTIL || HAVE_LIBSWSCALE
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void FFMPEGInit() {
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static bool bInit = false;
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if(!bInit) {
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av_register_all();
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av_log_set_level(AV_LOG_DEBUG);
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bInit = true;
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}
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}
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#if HAVE_LIBAVUTIL
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enum _AVPIXELFORMAT GetFFMPEGPixelFormat(unsigned int p_colours, unsigned p_subpixelorder) {
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enum _AVPIXELFORMAT pf;
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Debug(8,"Colours: %d SubpixelOrder: %d",p_colours,p_subpixelorder);
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switch(p_colours) {
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case ZM_COLOUR_RGB24:
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{
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if(p_subpixelorder == ZM_SUBPIX_ORDER_BGR) {
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/* BGR subpixel order */
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pf = AV_PIX_FMT_BGR24;
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} else {
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/* Assume RGB subpixel order */
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pf = AV_PIX_FMT_RGB24;
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}
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break;
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}
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case ZM_COLOUR_RGB32:
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{
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if(p_subpixelorder == ZM_SUBPIX_ORDER_ARGB) {
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/* ARGB subpixel order */
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pf = AV_PIX_FMT_ARGB;
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} else if(p_subpixelorder == ZM_SUBPIX_ORDER_ABGR) {
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/* ABGR subpixel order */
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pf = AV_PIX_FMT_ABGR;
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} else if(p_subpixelorder == ZM_SUBPIX_ORDER_BGRA) {
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/* BGRA subpixel order */
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pf = AV_PIX_FMT_BGRA;
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} else {
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/* Assume RGBA subpixel order */
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pf = AV_PIX_FMT_RGBA;
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}
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break;
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}
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case ZM_COLOUR_GRAY8:
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pf = AV_PIX_FMT_GRAY8;
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break;
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default:
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Panic("Unexpected colours: %d",p_colours);
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pf = AV_PIX_FMT_GRAY8; /* Just to shush gcc variable may be unused warning */
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break;
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}
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return pf;
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}
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#endif // HAVE_LIBAVUTIL
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#if HAVE_LIBSWSCALE && HAVE_LIBAVUTIL
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SWScale::SWScale() : gotdefaults(false), swscale_ctx(NULL), input_avframe(NULL), output_avframe(NULL) {
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Debug(4,"SWScale object created");
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/* Allocate AVFrame for the input */
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#if LIBAVCODEC_VERSION_CHECK(55, 28, 1, 45, 101)
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input_avframe = av_frame_alloc();
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#else
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input_avframe = avcodec_alloc_frame();
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#endif
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if(input_avframe == NULL) {
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Fatal("Failed allocating AVFrame for the input");
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}
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/* Allocate AVFrame for the output */
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#if LIBAVCODEC_VERSION_CHECK(55, 28, 1, 45, 101)
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output_avframe = av_frame_alloc();
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#else
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output_avframe = avcodec_alloc_frame();
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#endif
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if(output_avframe == NULL) {
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Fatal("Failed allocating AVFrame for the output");
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}
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}
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SWScale::~SWScale() {
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/* Free up everything */
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#if LIBAVCODEC_VERSION_CHECK(55, 28, 1, 45, 101)
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av_frame_free( &input_avframe );
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#else
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av_freep( &input_avframe );
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#endif
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//input_avframe = NULL;
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#if LIBAVCODEC_VERSION_CHECK(55, 28, 1, 45, 101)
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av_frame_free( &output_avframe );
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#else
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av_freep( &output_avframe );
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#endif
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//output_avframe = NULL;
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if(swscale_ctx) {
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sws_freeContext(swscale_ctx);
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swscale_ctx = NULL;
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}
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Debug(4,"SWScale object destroyed");
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}
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int SWScale::SetDefaults(enum _AVPIXELFORMAT in_pf, enum _AVPIXELFORMAT out_pf, unsigned int width, unsigned int height) {
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/* Assign the defaults */
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default_input_pf = in_pf;
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default_output_pf = out_pf;
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default_width = width;
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default_height = height;
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gotdefaults = true;
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return 0;
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}
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int SWScale::Convert(const uint8_t* in_buffer, const size_t in_buffer_size, uint8_t* out_buffer, const size_t out_buffer_size, enum _AVPIXELFORMAT in_pf, enum _AVPIXELFORMAT out_pf, unsigned int width, unsigned int height) {
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/* Parameter checking */
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if(in_buffer == NULL || out_buffer == NULL) {
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Error("NULL Input or output buffer");
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return -1;
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}
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if(!width || !height) {
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Error("Invalid width or height");
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return -3;
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}
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#if LIBSWSCALE_VERSION_CHECK(0, 8, 0, 8, 0)
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/* Warn if the input or output pixelformat is not supported */
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if(!sws_isSupportedInput(in_pf)) {
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Warning("swscale does not support the input format: %c%c%c%c",(in_pf)&0xff,((in_pf)&0xff),((in_pf>>16)&0xff),((in_pf>>24)&0xff));
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}
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if(!sws_isSupportedOutput(out_pf)) {
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Warning("swscale does not support the output format: %c%c%c%c",(out_pf)&0xff,((out_pf>>8)&0xff),((out_pf>>16)&0xff),((out_pf>>24)&0xff));
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}
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#endif
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/* Check the buffer sizes */
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#if LIBAVUTIL_VERSION_CHECK(54, 6, 0, 6, 0)
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size_t insize = av_image_get_buffer_size(in_pf, width, height,1);
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#else
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size_t insize = avpicture_get_size(in_pf, width, height);
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#endif
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if(insize != in_buffer_size) {
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Error("The input buffer size does not match the expected size for the input format. Required: %d Available: %d", insize, in_buffer_size);
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return -4;
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}
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#if LIBAVUTIL_VERSION_CHECK(54, 6, 0, 6, 0)
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size_t outsize = av_image_get_buffer_size(out_pf, width, height,1);
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#else
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size_t outsize = avpicture_get_size(out_pf, width, height);
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#endif
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if(outsize < out_buffer_size) {
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Error("The output buffer is undersized for the output format. Required: %d Available: %d", outsize, out_buffer_size);
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return -5;
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}
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/* Get the context */
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swscale_ctx = sws_getCachedContext( swscale_ctx, width, height, in_pf, width, height, out_pf, SWS_FAST_BILINEAR, NULL, NULL, NULL );
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if(swscale_ctx == NULL) {
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Error("Failed getting swscale context");
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return -6;
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}
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/* Fill in the buffers */
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#if LIBAVUTIL_VERSION_CHECK(54, 6, 0, 6, 0)
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if(av_image_fill_arrays(input_avframe->data, input_avframe->linesize,
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(uint8_t*)in_buffer, in_pf, width, height, 1) <= 0)
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{
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#else
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if(avpicture_fill( (AVPicture*)input_avframe, (uint8_t*)in_buffer,
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in_pf, width, height ) <= 0)
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{
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#endif
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Error("Failed filling input frame with input buffer");
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return -7;
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}
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if(!avpicture_fill( (AVPicture*)output_avframe, out_buffer, out_pf, width, height ) ) {
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Error("Failed filling output frame with output buffer");
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return -8;
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}
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/* Do the conversion */
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if(!sws_scale(swscale_ctx, input_avframe->data, input_avframe->linesize, 0, height, output_avframe->data, output_avframe->linesize ) ) {
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Error("swscale conversion failed");
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return -10;
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}
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return 0;
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}
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int SWScale::Convert(const Image* img, uint8_t* out_buffer, const size_t out_buffer_size, enum _AVPIXELFORMAT in_pf, enum _AVPIXELFORMAT out_pf, unsigned int width, unsigned int height) {
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if(img->Width() != width) {
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Error("Source image width differs. Source: %d Output: %d",img->Width(), width);
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return -12;
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}
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if(img->Height() != height) {
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Error("Source image height differs. Source: %d Output: %d",img->Height(), height);
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return -13;
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}
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return Convert(img->Buffer(),img->Size(),out_buffer,out_buffer_size,in_pf,out_pf,width,height);
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}
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int SWScale::ConvertDefaults(const Image* img, uint8_t* out_buffer, const size_t out_buffer_size) {
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if(!gotdefaults) {
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Error("Defaults are not set");
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return -24;
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}
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return Convert(img,out_buffer,out_buffer_size,default_input_pf,default_output_pf,default_width,default_height);
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}
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int SWScale::ConvertDefaults(const uint8_t* in_buffer, const size_t in_buffer_size, uint8_t* out_buffer, const size_t out_buffer_size) {
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if(!gotdefaults) {
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Error("Defaults are not set");
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return -24;
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}
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return Convert(in_buffer,in_buffer_size,out_buffer,out_buffer_size,default_input_pf,default_output_pf,default_width,default_height);
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}
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#endif // HAVE_LIBSWSCALE && HAVE_LIBAVUTIL
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#endif // HAVE_LIBAVCODEC || HAVE_LIBAVUTIL || HAVE_LIBSWSCALE
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#if HAVE_LIBAVUTIL
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int64_t av_rescale_delta(AVRational in_tb, int64_t in_ts, AVRational fs_tb, int duration, int64_t *last, AVRational out_tb){
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int64_t a, b, this_thing;
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av_assert0(in_ts != AV_NOPTS_VALUE);
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av_assert0(duration >= 0);
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if (*last == AV_NOPTS_VALUE || !duration || in_tb.num*(int64_t)out_tb.den <= out_tb.num*(int64_t)in_tb.den) {
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simple_round:
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*last = av_rescale_q(in_ts, in_tb, fs_tb) + duration;
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return av_rescale_q(in_ts, in_tb, out_tb);
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}
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a = av_rescale_q_rnd(2*in_ts-1, in_tb, fs_tb, AV_ROUND_DOWN) >>1;
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b = (av_rescale_q_rnd(2*in_ts+1, in_tb, fs_tb, AV_ROUND_UP )+1)>>1;
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if (*last < 2*a - b || *last > 2*b - a)
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goto simple_round;
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this_thing = av_clip64(*last, a, b);
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*last = this_thing + duration;
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return av_rescale_q(this_thing, fs_tb, out_tb);
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}
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#endif
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int hacked_up_context2_for_older_ffmpeg(AVFormatContext **avctx, AVOutputFormat *oformat, const char *format, const char *filename) {
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AVFormatContext *s = avformat_alloc_context();
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int ret = 0;
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*avctx = NULL;
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if (!s) {
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av_log(s, AV_LOG_ERROR, "Out of memory\n");
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ret = AVERROR(ENOMEM);
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return ret;
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}
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if (!oformat) {
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if (format) {
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oformat = av_guess_format(format, NULL, NULL);
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if (!oformat) {
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av_log(s, AV_LOG_ERROR, "Requested output format '%s' is not a suitable output format\n", format);
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ret = AVERROR(EINVAL);
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}
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} else {
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oformat = av_guess_format(NULL, filename, NULL);
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if (!oformat) {
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ret = AVERROR(EINVAL);
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av_log(s, AV_LOG_ERROR, "Unable to find a suitable output format for '%s'\n", filename);
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}
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}
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}
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if (ret) {
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avformat_free_context(s);
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return ret;
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} else {
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s->oformat = oformat;
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if (s->oformat->priv_data_size > 0) {
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s->priv_data = av_mallocz(s->oformat->priv_data_size);
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if (s->priv_data) {
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if (s->oformat->priv_class) {
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*(const AVClass**)s->priv_data= s->oformat->priv_class;
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av_opt_set_defaults(s->priv_data);
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}
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} else {
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av_log(s, AV_LOG_ERROR, "Out of memory\n");
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ret = AVERROR(ENOMEM);
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return ret;
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}
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s->priv_data = NULL;
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}
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if (filename) strncpy(s->filename, filename, sizeof(s->filename));
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*avctx = s;
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return 0;
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}
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}
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static void zm_log_fps(double d, const char *postfix)
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{
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uint64_t v = lrintf(d * 100);
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if (!v) {
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Debug(3, "%1.4f %s", d, postfix);
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} else if (v % 100) {
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Debug(3, "%3.2f %s", d, postfix);
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} else if (v % (100 * 1000)) {
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Debug(3, "%1.0f %s", d, postfix);
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} else
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Debug(3, "%1.0fk %s", d / 1000, postfix);
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}
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/* "user interface" functions */
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void zm_dump_stream_format(AVFormatContext *ic, int i, int index, int is_output) {
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char buf[256];
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int flags = (is_output ? ic->oformat->flags : ic->iformat->flags);
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AVStream *st = ic->streams[i];
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AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
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char separator = '\n';
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avcodec_string(buf, sizeof(buf), st->codec, is_output);
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Debug(3, " Stream #%d:%d", index, i);
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/* the pid is an important information, so we display it */
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/* XXX: add a generic system */
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if (flags & AVFMT_SHOW_IDS)
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Debug(3, "[0x%x]", st->id);
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if (lang)
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Debug(3, "(%s)", lang->value);
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av_log(NULL, AV_LOG_DEBUG, ", %d, %d/%d", st->codec_info_nb_frames,
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st->time_base.num, st->time_base.den);
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Debug(3, ": %s", buf);
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if (st->sample_aspect_ratio.num && // default
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av_cmp_q(st->sample_aspect_ratio, st->codec->sample_aspect_ratio)) {
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AVRational display_aspect_ratio;
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av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
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st->codec->width * (int64_t)st->sample_aspect_ratio.num,
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st->codec->height * (int64_t)st->sample_aspect_ratio.den,
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1024 * 1024);
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Debug(3, ", SAR %d:%d DAR %d:%d",
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st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
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display_aspect_ratio.num, display_aspect_ratio.den);
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}
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if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
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int fps = st->avg_frame_rate.den && st->avg_frame_rate.num;
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int tbr = st->r_frame_rate.den && st->r_frame_rate.num;
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int tbn = st->time_base.den && st->time_base.num;
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int tbc = st->codec->time_base.den && st->codec->time_base.num;
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if (fps || tbr || tbn || tbc)
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Debug(3, "%s", separator);
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if (fps)
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zm_log_fps(av_q2d(st->avg_frame_rate), tbr || tbn || tbc ? "fps, " : "fps");
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if (tbr)
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zm_log_fps(av_q2d(st->r_frame_rate), tbn || tbc ? "tbr, " : "tbr");
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if (tbn)
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zm_log_fps(1 / av_q2d(st->time_base), tbc ? "tbn, " : "tbn");
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if (tbc)
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zm_log_fps(1 / av_q2d(st->codec->time_base), "tbc");
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}
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if (st->disposition & AV_DISPOSITION_DEFAULT)
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Debug(3, " (default)");
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if (st->disposition & AV_DISPOSITION_DUB)
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Debug(3, " (dub)");
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if (st->disposition & AV_DISPOSITION_ORIGINAL)
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Debug(3, " (original)");
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if (st->disposition & AV_DISPOSITION_COMMENT)
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Debug(3, " (comment)");
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if (st->disposition & AV_DISPOSITION_LYRICS)
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Debug(3, " (lyrics)");
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if (st->disposition & AV_DISPOSITION_KARAOKE)
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Debug(3, " (karaoke)");
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if (st->disposition & AV_DISPOSITION_FORCED)
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Debug(3, " (forced)");
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if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
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Debug(3, " (hearing impaired)");
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if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
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Debug(3, " (visual impaired)");
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if (st->disposition & AV_DISPOSITION_CLEAN_EFFECTS)
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Debug(3, " (clean effects)");
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Debug(3, "\n");
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//dump_metadata(NULL, st->metadata, " ");
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//dump_sidedata(NULL, st, " ");
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}
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