1 /* GStreamer mpeg2enc (mjpegtools) wrapper 2 * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> 3 * (c) 2006 Mark Nauwelaerts <manauw@skynet.be> 4 * 5 * gstmpeg2enc.hh: object definition 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public 18 * License along with this library; if not, write to the 19 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 20 * Boston, MA 02110-1301, USA. 21 */ 22 23 #ifndef __GST_MPEG2ENC_H__ 24 #define __GST_MPEG2ENC_H__ 25 26 #include <gst/gst.h> 27 #include <gst/video/video.h> 28 29 #include "gstmpeg2encoptions.hh" 30 #include "gstmpeg2encoder.hh" 31 32 G_BEGIN_DECLS 33 34 #define GST_TYPE_MPEG2ENC \ 35 (gst_mpeg2enc_get_type ()) 36 #define GST_MPEG2ENC(obj) \ 37 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MPEG2ENC, GstMpeg2enc)) 38 #define GST_MPEG2ENC_CLASS(klass) \ 39 (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_MPEG2ENC, GstMpeg2enc)) 40 #define GST_IS_MPEG2ENC(obj) \ 41 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MPEG2ENC)) 42 #define GST_IS_MPEG2ENC_CLASS(obj) \ 43 (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_MPEG2ENC)) 44 45 GST_DEBUG_CATEGORY_EXTERN (mpeg2enc_debug); 46 #define GST_CAT_DEFAULT mpeg2enc_debug 47 48 #define GST_MPEG2ENC_MUTEX_LOCK(m) G_STMT_START { \ 49 GST_LOG_OBJECT (m, "locking tlock from thread %p", g_thread_self ()); \ 50 g_mutex_lock (&m->tlock); \ 51 GST_LOG_OBJECT (m, "locked tlock from thread %p", g_thread_self ()); \ 52 } G_STMT_END 53 54 #define GST_MPEG2ENC_MUTEX_UNLOCK(m) G_STMT_START { \ 55 GST_LOG_OBJECT (m, "unlocking tlock from thread %p", g_thread_self ()); \ 56 g_mutex_unlock (&m->tlock); \ 57 } G_STMT_END 58 59 #define GST_MPEG2ENC_WAIT(m) G_STMT_START { \ 60 GST_LOG_OBJECT (m, "thread %p waiting", g_thread_self ()); \ 61 g_cond_wait (&m->cond, &m->tlock); \ 62 } G_STMT_END 63 64 #define GST_MPEG2ENC_SIGNAL(m) G_STMT_START { \ 65 GST_LOG_OBJECT (m, "signalling from thread %p", g_thread_self ()); \ 66 g_cond_signal (&m->cond); \ 67 } G_STMT_END 68 69 typedef struct _GstMpeg2enc { 70 GstVideoEncoder base_video_encoder; 71 72 /* options wrapper */ 73 GstMpeg2EncOptions *options; 74 75 /* general encoding object (contains rest) */ 76 GstMpeg2Encoder *encoder; 77 78 /* lock for syncing with encoding task */ 79 GMutex tlock; 80 /* with TLOCK */ 81 /* signals counterpart thread that something changed; 82 * frame ready for task or buffer has been processed */ 83 GCond cond; 84 /* seen eos */ 85 gboolean eos; 86 /* flowreturn obtained by encoding task */ 87 GstFlowReturn srcresult; 88 89 gboolean started; 90 91 GstVideoCodecState *input_state; 92 GstVideoCodecFrame *pending_frame; 93 } GstMpeg2enc; 94 95 typedef struct _GstMpeg2encClass { 96 GstVideoEncoderClass base_video_encoder_class; 97 } GstMpeg2encClass; 98 99 GType gst_mpeg2enc_get_type (void); 100 101 GST_ELEMENT_REGISTER_DECLARE (mpeg2enc); 102 103 G_END_DECLS 104 105 #endif /* __GST_MPEG2ENC_H__ */ 106