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-rw-r--r--debian/transcode/transcode-1.1.7/tools/rawsource.c288
1 files changed, 288 insertions, 0 deletions
diff --git a/debian/transcode/transcode-1.1.7/tools/rawsource.c b/debian/transcode/transcode-1.1.7/tools/rawsource.c
new file mode 100644
index 00000000..4951a0a8
--- /dev/null
+++ b/debian/transcode/transcode-1.1.7/tools/rawsource.c
@@ -0,0 +1,288 @@
+/*
+ * rawsource.c -- (almost) raw source reader interface for encoder
+ * expect WAV audio and YUV4MPEG2 video
+ * (C) 2006-2010 - 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/>.
+ */
+
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "framebuffer.h"
+#include "dl_loader.h"
+#include "rawsource.h"
+#include "libtc/libtc.h"
+#include "libtc/tcframes.h"
+#include "avilib/wavlib.h"
+#include "rawsource.h"
+
+#define RAWSOURCE_IM_MOD "yuv4mpeg"
+
+static int rawsource_read_video(TCEncoderBuffer *buf, vob_t *vob);
+static int rawsource_read_audio(TCEncoderBuffer *buf, vob_t *vob);
+static void rawsource_dummy(TCEncoderBuffer *buf);
+
+
+typedef struct tcrawsource_ {
+ void *im_handle;
+ transfer_t im_para;
+
+ int eof_flag;
+ int sources;
+
+ vframe_list_t *vframe;
+ aframe_list_t *aframe;
+ int acount;
+} TCFileSource;
+
+static TCFileSource rawsource = {
+ .im_handle = NULL,
+
+ .eof_flag = TC_FALSE,
+ .sources = 0,
+
+ .vframe = NULL,
+ .aframe = NULL,
+ .acount = 0,
+};
+
+static TCEncoderBuffer raw_buffer = {
+ .frame_id = 0,
+
+ .vptr = NULL,
+ .aptr = NULL,
+
+ .acquire_video_frame = rawsource_read_video,
+ .acquire_audio_frame = rawsource_read_audio,
+ .dispose_video_frame = rawsource_dummy,
+ .dispose_audio_frame = rawsource_dummy,
+};
+TCEncoderBuffer *tc_rawsource_buffer = NULL;
+
+static int rawsource_read_video(TCEncoderBuffer *buf, vob_t *vob)
+{
+ int ret;
+
+ if (!buf) {
+ /* paranoia */
+ return -1;
+ }
+ if (vob->im_v_size > rawsource.vframe->video_size) {
+ /* paranoia */
+ tc_log_error(__FILE__, "video buffer too small"
+ " (this should'nt happen)");
+ return -1;
+ }
+
+ rawsource.im_para.buffer = rawsource.vframe->video_buf;
+ rawsource.im_para.buffer2 = NULL;
+ rawsource.im_para.size = vob->im_v_size;
+ rawsource.im_para.flag = TC_VIDEO;
+
+ ret = tcv_import(TC_IMPORT_DECODE, &rawsource.im_para, vob);
+ if (ret != TC_IMPORT_OK) {
+ /* read failed */
+ rawsource.eof_flag = TC_TRUE;
+ return -1;
+ }
+ rawsource.vframe->video_size = rawsource.im_para.size;
+ rawsource.vframe->attributes = rawsource.im_para.attributes;
+
+ raw_buffer.vptr = rawsource.vframe;
+ raw_buffer.frame_id++;
+ return 0;
+}
+
+static int rawsource_read_audio(TCEncoderBuffer *buf, vob_t *vob)
+{
+ int ret = 0;
+ int abytes = vob->im_a_size;
+
+ // audio adjustment for non PAL frame rates:
+
+ if (rawsource.acount != 0 && rawsource.acount % TC_LEAP_FRAME == 0) {
+ abytes += vob->a_leap_bytes;
+ }
+
+ if (!buf) {
+ /* paranoia */
+ return -1;
+ }
+ if (abytes > rawsource.aframe->audio_size) {
+ /* paranoia */
+ tc_log_error(__FILE__, "audio buffer too small"
+ " (this should'nt happen)");
+ return -1;
+ }
+
+ rawsource.im_para.buffer = rawsource.aframe->audio_buf;
+ rawsource.im_para.buffer2 = NULL;
+ rawsource.im_para.size = abytes;
+ rawsource.im_para.flag = TC_AUDIO;
+
+ ret = tca_import(TC_IMPORT_DECODE, &rawsource.im_para, vob);
+ if (ret != TC_IMPORT_OK) {
+ /* read failed */
+ rawsource.eof_flag = TC_TRUE;
+ return -1;
+ }
+ rawsource.acount++;
+ rawsource.aframe->audio_size = rawsource.im_para.size;
+ rawsource.aframe->attributes = rawsource.im_para.attributes;
+
+ raw_buffer.aptr = rawsource.aframe;
+ return 0;
+}
+
+static void rawsource_dummy(TCEncoderBuffer *buf)
+{
+ return;
+}
+
+int tc_rawsource_open(vob_t *vob)
+{
+ int ret = 0;
+ int num_sources = 0;
+ double samples;
+
+ if (!vob) {
+ goto vframe_failed;
+ }
+
+ rawsource.vframe = tc_new_video_frame(vob->im_v_width, vob->im_v_height,
+ vob->im_v_codec, TC_TRUE);
+ if (!rawsource.vframe) {
+ tc_log_error(__FILE__, "can't allocate video frame buffer");
+ goto vframe_failed;
+ }
+ samples = TC_AUDIO_SAMPLES_IN_FRAME(vob->a_rate, vob->ex_fps);
+ rawsource.aframe = tc_new_audio_frame(samples, vob->a_chan, vob->a_bits);
+ if (!rawsource.aframe) {
+ tc_log_error(__FILE__, "can't allocate audio frame buffer");
+ goto aframe_failed;
+ }
+
+ rawsource.im_handle = load_module(RAWSOURCE_IM_MOD, TC_IMPORT|TC_AUDIO|TC_VIDEO);
+ if (!rawsource.im_handle) {
+ tc_log_error(__FILE__, "can't load import module");
+ goto load_failed;
+ }
+
+ /* hello, module! */
+ memset(&rawsource.im_para, 0, sizeof(transfer_t));
+ rawsource.im_para.flag = vob->verbose;
+ tca_import(TC_IMPORT_NAME, &rawsource.im_para, NULL);
+
+ memset(&rawsource.im_para, 0, sizeof(transfer_t));
+ rawsource.im_para.flag = vob->verbose;
+ tcv_import(TC_IMPORT_NAME, &rawsource.im_para, NULL);
+
+ /* open sources */
+ memset(&rawsource.im_para, 0, sizeof(transfer_t));
+ rawsource.im_para.flag = TC_AUDIO;
+ ret = tca_import(TC_IMPORT_OPEN, &rawsource.im_para, vob);
+ if (TC_IMPORT_OK == ret) {
+ num_sources++;
+ rawsource.sources |= TC_AUDIO;
+ }
+
+ memset(&rawsource.im_para, 0, sizeof(transfer_t));
+ rawsource.im_para.flag = TC_VIDEO;
+ ret = tcv_import(TC_IMPORT_OPEN, &rawsource.im_para, vob);
+ if (TC_IMPORT_OK == ret) {
+ num_sources++;
+ rawsource.sources |= TC_VIDEO;
+ }
+
+ if (num_sources > 0) {
+ tc_rawsource_buffer = &raw_buffer;
+ }
+ return num_sources;
+
+load_failed:
+ tc_del_audio_frame(rawsource.aframe);
+aframe_failed:
+ tc_del_video_frame(rawsource.vframe);
+vframe_failed:
+ return -1;
+}
+
+static void tc_rawsource_free(void)
+{
+ if (rawsource.vframe != NULL) {
+ tc_del_video_frame(rawsource.vframe);
+ rawsource.vframe = NULL;
+ }
+ if (rawsource.aframe != NULL) {
+ tc_del_audio_frame(rawsource.aframe);
+ rawsource.aframe = NULL;
+ }
+}
+
+/* errors not fatal, but notified */
+int tc_rawsource_close(void)
+{
+ tc_rawsource_free();
+
+ if (rawsource.im_handle != NULL) {
+ int ret = 0;
+
+ memset(&rawsource.im_para, 0, sizeof(transfer_t));
+ rawsource.im_para.flag = TC_VIDEO;
+ ret = tcv_import(TC_IMPORT_CLOSE, &rawsource.im_para, NULL);
+ if(ret != TC_IMPORT_OK) {
+ tc_log_warn(__FILE__, "video import module error: CLOSE failed");
+ } else {
+ rawsource.sources &= ~TC_VIDEO;
+ }
+
+ memset(&rawsource.im_para, 0, sizeof(transfer_t));
+ rawsource.im_para.flag = TC_AUDIO;
+ ret = tca_import(TC_IMPORT_CLOSE, &rawsource.im_para, NULL);
+ if(ret != TC_IMPORT_OK) {
+ tc_log_warn(__FILE__, "audio import module error: CLOSE failed");
+ } else {
+ rawsource.sources &= ~TC_AUDIO;
+ }
+
+ if (!rawsource.sources) {
+ unload_module(rawsource.im_handle);
+ rawsource.im_handle = NULL;
+ }
+ }
+ return 0;
+}
+
+/*************************************************************************/
+
+/*
+ * 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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