Work on FFMpegInvoker

3 files changed, 379 insertions, 1 deletions

diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 93c002e..5fcad93 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -18,6 +18,13 @@ if (SWI_FOUND)
 	add_test(test-prolog-swi ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/uscxml-browser ${CMAKE_SOURCE_DIR}/test/samples/uscxml/test-prolog.scxml)
 endif()
 
+if (FFMPEG_FOUND)
+	add_executable(test-ffmpeg src/test-ffmpeg.cpp)
+	target_link_libraries(test-ffmpeg uscxml)
+	add_test(test-ffmpeg ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/test-ffmpeg)
+	set_target_properties(test-ffmpeg PROPERTIES FOLDER "Tests")
+endif()
+
 if (V8_FOUND)
 	add_test(test-ecmascript ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/uscxml-browser ${CMAKE_SOURCE_DIR}/test/samples/uscxml/test-ecmascript.scxml)
 endif()
diff --git a/test/src/test-ffmpeg.cpp b/test/src/test-ffmpeg.cpp
new file mode 100644
index 0000000..c9dcfe1
--- /dev/null
+++ b/test/src/test-ffmpeg.cpp
@@ -0,0 +1,371 @@
+/*
+ * Copyright (c) 2003 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * @file
+ * libavformat API example.
+ *
+ * Output a media file in any supported libavformat format.
+ * The default codecs are used.
+ * @example doc/examples/muxing.c
+ */
+
+#include <fstream>
+#include <sstream>
+
+extern "C" {
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+
+#include <libavutil/opt.h>
+#include <libavutil/mathematics.h>
+#include <libavformat/avformat.h>
+#include <libswscale/swscale.h>
+#include <libswresample/swresample.h>
+}
+/* 5 seconds stream duration */
+#define STREAM_FRAME_RATE 25 /* 25 images/s */
+#define STREAM_PIX_FMT    AV_PIX_FMT_YUV420P /* default pix_fmt */
+#define BMP_FORMAT AV_PIX_FMT_RGB24
+
+static int sws_flags = SWS_BICUBIC;
+
+/* Add an output stream. */
+static AVStream *add_stream(AVFormatContext *oc, AVCodec **codec,
+                            enum AVCodecID codec_id)
+{
+    AVCodecContext *c;
+    AVStream *st;
+
+    /* find the encoder */
+    *codec = avcodec_find_encoder(codec_id);
+    if (!(*codec)) {
+        fprintf(stderr, "Could not find encoder for '%s'\n",
+                avcodec_get_name(codec_id));
+        exit(1);
+    }
+
+    st = avformat_new_stream(oc, *codec);
+    if (!st) {
+        fprintf(stderr, "Could not allocate stream\n");
+        exit(1);
+    }
+    st->id = oc->nb_streams-1;
+    c = st->codec;
+
+    switch ((*codec)->type) {
+    case AVMEDIA_TYPE_AUDIO:
+        c->sample_fmt  = AV_SAMPLE_FMT_FLTP;
+        c->bit_rate    = 64000;
+        c->sample_rate = 44100;
+        c->channels    = 2;
+        break;
+
+    case AVMEDIA_TYPE_VIDEO:
+        c->codec_id = codec_id;
+
+        c->bit_rate = 400000;
+        /* Resolution must be a multiple of two. */
+        c->width    = 352;
+        c->height   = 288;
+        /* timebase: This is the fundamental unit of time (in seconds) in terms
+         * of which frame timestamps are represented. For fixed-fps content,
+         * timebase should be 1/framerate and timestamp increments should be
+         * identical to 1. */
+        c->time_base.den = STREAM_FRAME_RATE;
+        c->time_base.num = 1;
+        c->gop_size      = 12; /* emit one intra frame every twelve frames at most */
+        c->pix_fmt       = STREAM_PIX_FMT;
+        if (c->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
+            /* just for testing, we also add B frames */
+            c->max_b_frames = 2;
+        }
+        if (c->codec_id == AV_CODEC_ID_MPEG1VIDEO) {
+            /* Needed to avoid using macroblocks in which some coeffs overflow.
+             * This does not happen with normal video, it just happens here as
+             * the motion of the chroma plane does not match the luma plane. */
+            c->mb_decision = 2;
+        }
+    break;
+
+    default:
+        break;
+    }
+
+    /* Some formats want stream headers to be separate. */
+    if (oc->oformat->flags & AVFMT_GLOBALHEADER)
+        c->flags |= CODEC_FLAG_GLOBAL_HEADER;
+
+    return st;
+}
+
+
+/**************************************************************/
+/* video output */
+
+static AVFrame *frame;
+static AVPicture src_picture, dst_picture;
+static int frame_count;
+
+static void open_video(AVFormatContext *oc, AVCodec *codec, AVStream *st)
+{
+    int ret;
+    AVCodecContext *c = st->codec;
+
+    /* open the codec */
+    ret = avcodec_open2(c, codec, NULL);
+    if (ret < 0) {
+        fprintf(stderr, "Could not open video codec: %s\n", av_err2str(ret));
+        exit(1);
+    }
+
+    /* allocate and init a re-usable frame */
+    frame = avcodec_alloc_frame();
+    if (!frame) {
+        fprintf(stderr, "Could not allocate video frame\n");
+        exit(1);
+    }
+
+    /* Allocate the encoded raw picture. */
+    ret = avpicture_alloc(&dst_picture, c->pix_fmt, c->width, c->height);
+    if (ret < 0) {
+        fprintf(stderr, "Could not allocate picture: %s\n", av_err2str(ret));
+        exit(1);
+    }
+
+    /* If the output format is not YUV420P, then a temporary YUV420P
+     * picture is needed too. It is then converted to the required
+     * output format. */
+    if (c->pix_fmt != BMP_FORMAT) {
+        ret = avpicture_alloc(&src_picture, BMP_FORMAT, c->width, c->height);
+        if (ret < 0) {
+            fprintf(stderr, "Could not allocate temporary picture: %s\n",
+                    av_err2str(ret));
+            exit(1);
+        }
+    }
+
+    /* copy data and linesize picture pointers to frame */
+    *((AVPicture *)frame) = dst_picture;
+}
+
+
+/* Prepare a dummy image. */
+static void fill_rgba_image(AVPicture *pict, int frame_index,
+                           int width, int height)
+{
+	int x, y, i;
+	
+	i = frame_index;
+	
+	std::stringstream ssFilename;
+	ssFilename << "/Users/sradomski/Desktop/ctrl/" << (i % 125) << ".bmp";
+	
+	std::ifstream file(ssFilename.str().c_str());
+
+	file.seekg(0, std::ios::end);
+	size_t length = file.tellg();
+	file.seekg(0, std::ios::beg);
+
+	char* buffer = (char*)malloc(length);
+	file.read(buffer, length);
+	
+	uint32_t offset = 0;
+	offset += buffer[10] << 0;
+	offset += buffer[11] << 8;
+	offset += buffer[12] << 16;
+	offset += buffer[13] << 24;
+	offset--;
+
+	for (y = 0; y < height; y++) {
+		for (x = 0; x < width; x++) {
+			pict->data[0][y * pict->linesize[0] + x * 3]     = buffer[offset++];
+			pict->data[0][y * pict->linesize[0] + x * 3 + 1] = buffer[offset++];
+			pict->data[0][y * pict->linesize[0] + x * 3 + 2] = buffer[offset++];
+		}
+	}
+	
+	free(buffer);
+}
+
+static void write_video_frame(AVFormatContext *oc, AVStream *st)
+{
+    int ret;
+    static struct SwsContext *sws_ctx;
+    AVCodecContext *c = st->codec;
+
+		if (c->pix_fmt != BMP_FORMAT) {
+					/* as we only generate a YUV420P picture, we must convert it
+					 * to the codec pixel format if needed */
+					if (!sws_ctx) {
+							sws_ctx = sws_getContext(c->width, c->height, BMP_FORMAT,
+																			 c->width, c->height, c->pix_fmt,
+																			 sws_flags, NULL, NULL, NULL);
+							if (!sws_ctx) {
+									fprintf(stderr,
+													"Could not initialize the conversion context\n");
+									exit(1);
+							}
+					}
+					fill_rgba_image(&src_picture, frame_count, c->width, c->height);
+					sws_scale(sws_ctx,
+										(const uint8_t * const *)src_picture.data, src_picture.linesize,
+										0, c->height, dst_picture.data, dst_picture.linesize);
+			} else {
+				fill_rgba_image(&dst_picture, frame_count, c->width, c->height);
+			}
+
+    if (oc->oformat->flags & AVFMT_RAWPICTURE) {
+        /* Raw video case - directly store the picture in the packet */
+        AVPacket pkt;
+        av_init_packet(&pkt);
+
+        pkt.flags        |= AV_PKT_FLAG_KEY;
+        pkt.stream_index  = st->index;
+        pkt.data          = dst_picture.data[0];
+        pkt.size          = sizeof(AVPicture);
+
+        ret = av_interleaved_write_frame(oc, &pkt);
+    } else {
+        AVPacket pkt = { 0 };
+        int got_packet;
+        av_init_packet(&pkt);
+
+        /* encode the image */
+        ret = avcodec_encode_video2(c, &pkt, frame, &got_packet);
+        if (ret < 0) {
+            fprintf(stderr, "Error encoding video frame: %s\n", av_err2str(ret));
+            exit(1);
+        }
+        /* If size is zero, it means the image was buffered. */
+
+        if (!ret && got_packet && pkt.size) {
+            pkt.stream_index = st->index;
+
+            /* Write the compressed frame to the media file. */
+            ret = av_interleaved_write_frame(oc, &pkt);
+        } else {
+            ret = 0;
+        }
+    }
+    if (ret != 0) {
+        fprintf(stderr, "Error while writing video frame: %s\n", av_err2str(ret));
+        exit(1);
+    }
+    frame_count++;
+}
+
+static void close_video(AVFormatContext *oc, AVStream *st)
+{
+    avcodec_close(st->codec);
+    av_free(src_picture.data[0]);
+    av_free(dst_picture.data[0]);
+    av_free(frame);
+}
+
+/**************************************************************/
+/* media file output */
+
+int main(int argc, char **argv)
+{
+    const char *filename;
+    AVOutputFormat *fmt;
+    AVFormatContext *oc;
+    AVStream *video_st;
+    AVCodec *video_codec;
+    int ret;
+
+    /* Initialize libavcodec, and register all codecs and formats. */
+    av_register_all();
+
+    filename = "/Users/sradomski/Desktop/test.mpg";
+
+    /* allocate the output media context */
+    avformat_alloc_output_context2(&oc, NULL, NULL, filename);
+    if (!oc) {
+        printf("Could not deduce output format from file extension: using MPEG.\n");
+        avformat_alloc_output_context2(&oc, NULL, "mpeg", filename);
+    }
+    if (!oc) {
+        return 1;
+    }
+    fmt = oc->oformat;
+
+    /* Add the audio and video streams using the default format codecs
+     * and initialize the codecs. */
+    video_st = NULL;
+
+    if (fmt->video_codec != AV_CODEC_ID_NONE) {
+        video_st = add_stream(oc, &video_codec, fmt->video_codec);
+    }
+
+    /* Now that all the parameters are set, we can open the audio and
+     * video codecs and allocate the necessary encode buffers. */
+    if (video_st)
+        open_video(oc, video_codec, video_st);
+
+    /* open the output file, if needed */
+    if (!(fmt->flags & AVFMT_NOFILE)) {
+        ret = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE);
+        if (ret < 0) {
+            fprintf(stderr, "Could not open '%s': %s\n", filename,
+                    av_err2str(ret));
+            return 1;
+        }
+    }
+
+    /* Write the stream header, if any. */
+    ret = avformat_write_header(oc, NULL);
+    if (ret < 0) {
+        fprintf(stderr, "Error occurred when opening output file: %s\n",
+                av_err2str(ret));
+        return 1;
+    }
+
+    if (frame)
+        frame->pts = 0;
+		for (int i = 0; i < 125; i++) {
+			write_video_frame(oc, video_st);
+			frame->pts += av_rescale_q(1, video_st->codec->time_base, video_st->time_base);
+    }
+
+    /* Write the trailer, if any. The trailer must be written before you
+     * close the CodecContexts open when you wrote the header; otherwise
+     * av_write_trailer() may try to use memory that was freed on
+     * av_codec_close(). */
+    av_write_trailer(oc);
+
+    /* Close each codec. */
+    if (video_st)
+        close_video(oc, video_st);
+
+    if (!(fmt->flags & AVFMT_NOFILE))
+        /* Close the output file. */
+        avio_close(oc->pb);
+
+    /* free the stream */
+    avformat_free_context(oc);
+
+    return 0;
+}
diff --git a/test/src/test-url.cpp b/test/src/test-url.cpp
index e0f8343..ed892b8 100644
--- a/test/src/test-url.cpp
+++ b/test/src/test-url.cpp
@@ -47,7 +47,7 @@ int main(int argc, char** argv) {
 	WSADATA wsaData;

 	WSAStartup(MAKEWORD(2, 2), &wsaData);

 #endif

-

+	

 	std::string exeName = argv[0];

 	exeName = exeName.substr(exeName.find_last_of("\\/") + 1);