Start working on a branch where FFmpeg is not copied, patched and carved to be built with automake but instead imported inline and built using its own build system. This is an import of a slightly modified FFmpeg current tree. xine-lib builds, install and run fine with it, but there are of course plenty of things that needs to be fixed before it can even be considered for a 1.2.x series. Work will continue in the next days of course.

CVS patchset: 8397
CVS date: 2006/12/02 01:19:48

1 files changed, 284 insertions, 0 deletions

diff --git a/contrib/ffmpeg/libavformat/flvenc.c b/contrib/ffmpeg/libavformat/flvenc.c
new file mode 100644
index 000000000..0b09d9830
--- /dev/null
+++ b/contrib/ffmpeg/libavformat/flvenc.c
@@ -0,0 +1,284 @@
+/*
+ * FLV muxer
+ * Copyright (c) 2003 The FFmpeg Project.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "avformat.h"
+
+#undef NDEBUG
+#include <assert.h>
+
+typedef struct FLVContext {
+    int hasAudio;
+    int hasVideo;
+    int reserved;
+    offset_t duration_offset;
+    offset_t filesize_offset;
+    int64_t duration;
+} FLVContext;
+
+static int get_audio_flags(AVCodecContext *enc){
+    int flags = (enc->bits_per_sample == 16) ? 0x2 : 0x0;
+
+    switch (enc->sample_rate) {
+        case    44100:
+            flags |= 0x0C;
+            break;
+        case    22050:
+            flags |= 0x08;
+            break;
+        case    11025:
+            flags |= 0x04;
+            break;
+        case     8000: //nellymoser only
+        case     5512: //not mp3
+            flags |= 0x00;
+            break;
+        default:
+            av_log(enc, AV_LOG_ERROR, "flv doesnt support that sample rate, choose from (44100, 22050, 11025)\n");
+            return -1;
+    }
+
+    if (enc->channels > 1) {
+        flags |= 0x01;
+    }
+
+    switch(enc->codec_id){
+    case CODEC_ID_MP3:
+        flags |= 0x20 | 0x2;
+        break;
+    case CODEC_ID_PCM_S8:
+        break;
+    case CODEC_ID_PCM_S16BE:
+        flags |= 0x2;
+        break;
+    case CODEC_ID_PCM_S16LE:
+        flags |= 0x30 | 0x2;
+        break;
+    case CODEC_ID_ADPCM_SWF:
+        flags |= 0x10;
+        break;
+    case 0:
+        flags |= enc->codec_tag<<4;
+        break;
+    default:
+        av_log(enc, AV_LOG_ERROR, "codec not compatible with flv\n");
+        return -1;
+    }
+
+    return flags;
+}
+
+#define AMF_DOUBLE  0
+#define AMF_BOOLEAN 1
+#define AMF_STRING  2
+#define AMF_OBJECT  3
+#define AMF_MIXED_ARRAY 8
+#define AMF_ARRAY  10
+#define AMF_DATE   11
+
+static void put_amf_string(ByteIOContext *pb, const char *str)
+{
+    size_t len = strlen(str);
+    put_be16(pb, len);
+    put_buffer(pb, str, len);
+}
+
+static void put_amf_double(ByteIOContext *pb, double d)
+{
+    put_byte(pb, AMF_DOUBLE);
+    put_be64(pb, av_dbl2int(d));
+}
+
+static int flv_write_header(AVFormatContext *s)
+{
+    ByteIOContext *pb = &s->pb;
+    FLVContext *flv = s->priv_data;
+    int i, width, height, samplerate;
+    double framerate = 0.0;
+    int metadata_size_pos, data_size;
+
+    flv->hasAudio = 0;
+    flv->hasVideo = 0;
+
+    put_tag(pb,"FLV");
+    put_byte(pb,1);
+    put_byte(pb,0); // delayed write
+    put_be32(pb,9);
+    put_be32(pb,0);
+
+    for(i=0; i<s->nb_streams; i++){
+        AVCodecContext *enc = s->streams[i]->codec;
+        if (enc->codec_type == CODEC_TYPE_VIDEO) {
+            width = enc->width;
+            height = enc->height;
+            if (s->streams[i]->r_frame_rate.den && s->streams[i]->r_frame_rate.num) {
+                framerate = av_q2d(s->streams[i]->r_frame_rate);
+            } else {
+                framerate = 1/av_q2d(s->streams[i]->codec->time_base);
+            }
+            flv->hasVideo=1;
+        } else {
+            flv->hasAudio=1;
+            samplerate = enc->sample_rate;
+        }
+        av_set_pts_info(s->streams[i], 24, 1, 1000); /* 24 bit pts in ms */
+        if(enc->codec_tag == 5){
+            put_byte(pb,8); // message type
+            put_be24(pb,0); // include flags
+            put_be24(pb,0); // time stamp
+            put_be32(pb,0); // reserved
+            put_be32(pb,11); // size
+            flv->reserved=5;
+        }
+        if(enc->codec_type == CODEC_TYPE_AUDIO && get_audio_flags(enc)<0)
+            return -1;
+    }
+
+    /* write meta_tag */
+    put_byte(pb, 18);         // tag type META
+    metadata_size_pos= url_ftell(pb);
+    put_be24(pb, 0);          // size of data part (sum of all parts below)
+    put_be24(pb, 0);          // time stamp
+    put_be32(pb, 0);          // reserved
+
+    /* now data of data_size size */
+
+    /* first event name as a string */
+    put_byte(pb, AMF_STRING); // 1 byte
+    put_amf_string(pb, "onMetaData"); // 12 bytes
+
+    /* mixed array (hash) with size and string/type/data tuples */
+    put_byte(pb, AMF_MIXED_ARRAY);
+    put_be32(pb, 4*flv->hasVideo + flv->hasAudio + 2); // +2 for duration and file size
+
+    put_amf_string(pb, "duration");
+    flv->duration_offset= url_ftell(pb);
+    put_amf_double(pb, 0); // delayed write
+
+    if(flv->hasVideo){
+        put_amf_string(pb, "width");
+        put_amf_double(pb, width);
+
+        put_amf_string(pb, "height");
+        put_amf_double(pb, height);
+
+        put_amf_string(pb, "videodatarate");
+        put_amf_double(pb, s->bit_rate / 1024.0);
+
+        put_amf_string(pb, "framerate");
+        put_amf_double(pb, framerate);
+    }
+
+    if(flv->hasAudio){
+        put_amf_string(pb, "audiosamplerate");
+        put_amf_double(pb, samplerate);
+    }
+
+    put_amf_string(pb, "filesize");
+    flv->filesize_offset= url_ftell(pb);
+    put_amf_double(pb, 0); // delayed write
+
+    put_amf_string(pb, "");
+    put_byte(pb, 9); // end marker 1 byte
+
+    /* write total size of tag */
+    data_size= url_ftell(pb) - metadata_size_pos - 10;
+    url_fseek(pb, metadata_size_pos, SEEK_SET);
+    put_be24(pb, data_size);
+    url_fseek(pb, data_size + 10 - 3, SEEK_CUR);
+    put_be32(pb, data_size + 11);
+
+    return 0;
+}
+
+static int flv_write_trailer(AVFormatContext *s)
+{
+    int64_t file_size;
+    int flags = 0;
+
+    ByteIOContext *pb = &s->pb;
+    FLVContext *flv = s->priv_data;
+
+    file_size = url_ftell(pb);
+    flags |= flv->hasAudio ? 4 : 0;
+    flags |= flv->hasVideo ? 1 : 0;
+    url_fseek(pb, 4, SEEK_SET);
+    put_byte(pb,flags);
+
+    /* update informations */
+    url_fseek(pb, flv->duration_offset, SEEK_SET);
+    put_amf_double(pb, flv->duration / (double)1000);
+    url_fseek(pb, flv->filesize_offset, SEEK_SET);
+    put_amf_double(pb, file_size);
+
+    url_fseek(pb, file_size, SEEK_SET);
+    return 0;
+}
+
+static int flv_write_packet(AVFormatContext *s, AVPacket *pkt)
+{
+    ByteIOContext *pb = &s->pb;
+    AVCodecContext *enc = s->streams[pkt->stream_index]->codec;
+    FLVContext *flv = s->priv_data;
+    int size= pkt->size;
+    int flags;
+
+//    av_log(s, AV_LOG_DEBUG, "type:%d pts: %"PRId64" size:%d\n", enc->codec_type, timestamp, size);
+
+    if (enc->codec_type == CODEC_TYPE_VIDEO) {
+        put_byte(pb, 9);
+        flags = 2; // choose h263
+        flags |= pkt->flags & PKT_FLAG_KEY ? 0x10 : 0x20; // add keyframe indicator
+    } else {
+        assert(enc->codec_type == CODEC_TYPE_AUDIO);
+        flags = get_audio_flags(enc);
+
+        assert(size);
+
+        put_byte(pb, 8);
+    }
+
+    put_be24(pb,size+1); // include flags
+    put_be24(pb,pkt->pts);
+    put_be32(pb,flv->reserved);
+    put_byte(pb,flags);
+    put_buffer(pb, pkt->data, size);
+    put_be32(pb,size+1+11); // previous tag size
+    flv->duration = pkt->pts + pkt->duration;
+
+    put_flush_packet(pb);
+    return 0;
+}
+
+AVOutputFormat flv_muxer = {
+    "flv",
+    "flv format",
+    "video/x-flv",
+    "flv",
+    sizeof(FLVContext),
+#ifdef CONFIG_MP3LAME
+    CODEC_ID_MP3,
+#else // CONFIG_MP3LAME
+    CODEC_ID_NONE,
+#endif // CONFIG_MP3LAME
+    CODEC_ID_FLV1,
+    flv_write_header,
+    flv_write_packet,
+    flv_write_trailer,
+};