static int write_frame( hnd_t handle, uint8_t *p_nalu, int i_size, x264_picture_t *p_picture ) { flv_hnd_t *p_flv = handle; flv_buffer *c = p_flv->c; int64_t dts = (int64_t)( (p_picture->i_dts * 1000 * ((double)p_flv->i_timebase_num / p_flv->i_timebase_den)) + 0.5 ); int64_t cts = (int64_t)( (p_picture->i_pts * 1000 * ((double)p_flv->i_timebase_num / p_flv->i_timebase_den)) + 0.5 ); int64_t offset = cts - dts; unsigned length; if( p_flv->i_framenum ) { int64_t prev_dts = (int64_t)( (p_flv->i_prev_dts * 1000 * ((double)p_flv->i_timebase_num / p_flv->i_timebase_den)) + 0.5 ); int64_t prev_cts = (int64_t)( (p_flv->i_prev_pts * 1000 * ((double)p_flv->i_timebase_num / p_flv->i_timebase_den)) + 0.5 ); if( prev_dts == dts ) { double fps = ((double)p_flv->i_timebase_den / p_flv->i_timebase_num) / (p_picture->i_dts - p_flv->i_prev_dts); #if _MSC_VER >= 1300 fprintf( stderr, "flv [warning]: duplicate DTS %"PRId64" generated by rounding\n" " current internal decoding framerate: %.6f fps\n", dts, fps ); #else fprintf( stderr, "flv [warning]: duplicate DTS %I64d generated by rounding\n" " current internal decoding framerate: %.6f fps\n", dts, fps ); #endif } if( prev_cts == cts ) { double fps = ((double)p_flv->i_timebase_den / p_flv->i_timebase_num) / (p_picture->i_pts - p_flv->i_prev_pts); #if _MSC_VER >= 1300 fprintf( stderr, "flv [warning]: duplicate CTS %"PRId64" generated by rounding\n" " current internal composition framerate: %.6f fps\n", cts, fps ); #else fprintf( stderr, "flv [warning]: duplicate CTS %I64d generated by rounding\n" " current internal composition framerate: %.6f fps\n", cts, fps ); #endif } } p_flv->i_prev_dts = p_picture->i_dts; p_flv->i_prev_pts = p_picture->i_pts; // A new frame - write packet header x264_put_byte( c, FLV_TAG_TYPE_VIDEO ); x264_put_be24( c, 0 ); // calculated later x264_put_be24( c, dts ); x264_put_byte( c, dts >> 24 ); x264_put_be24( c, 0 ); p_flv->start = c->d_cur; x264_put_byte( c, p_picture->b_keyframe ? FLV_FRAME_KEY : FLV_FRAME_INTER ); x264_put_byte( c, 1 ); // AVC NALU x264_put_be24( c, offset ); if( p_flv->sei ) { flv_append_data( c, p_flv->sei, p_flv->sei_len ); free( p_flv->sei ); p_flv->sei = NULL; } flv_append_data( c, p_nalu, i_size ); length = c->d_cur - p_flv->start; rewrite_amf_be24( c, length, p_flv->start - 10 ); x264_put_be32( c, 11 + length ); // Last tag size CHECK( flv_flush_data( c ) ); p_flv->i_framenum++; return i_size; }
static int write_frame( hnd_t handle, uint8_t *p_nalu, int i_size, x264_picture_t *p_picture ) { flv_hnd_t *p_flv = (flv_hnd_t *)handle; flv_buffer *c = p_flv->c; #define convert_timebase_ms( timestamp, timebase ) (int64_t)((timestamp) * (timebase) * 1000 + 0.5) if( !p_flv->i_framenum ) { p_flv->i_delay_time = p_picture->i_dts * -1; if( !p_flv->b_dts_compress && p_flv->i_delay_time ) { x264_cli_log( "flv", X264_LOG_INFO, "initial delay %I64d ms\n", convert_timebase_ms( p_picture->i_pts + p_flv->i_delay_time, p_flv->d_timebase ) ); // x264_cli_log( "flv", X264_LOG_INFO, "initial delay %"PRId64" ms\n", // convert_timebase_ms( p_picture->i_pts + p_flv->i_delay_time, p_flv->d_timebase ) ); }//TODO } int64_t dts; int64_t cts; int64_t offset; if( p_flv->b_dts_compress ) { if( p_flv->i_framenum == 1 ) p_flv->i_init_delta = convert_timebase_ms( p_picture->i_dts + p_flv->i_delay_time, p_flv->d_timebase ); dts = p_flv->i_framenum > p_flv->i_delay_frames ? convert_timebase_ms( p_picture->i_dts, p_flv->d_timebase ) : p_flv->i_framenum * p_flv->i_init_delta / (p_flv->i_delay_frames + 1); cts = convert_timebase_ms( p_picture->i_pts, p_flv->d_timebase ); } else { dts = convert_timebase_ms( p_picture->i_dts + p_flv->i_delay_time, p_flv->d_timebase ); cts = convert_timebase_ms( p_picture->i_pts + p_flv->i_delay_time, p_flv->d_timebase ); } offset = cts - dts; if( p_flv->i_framenum ) { if( p_flv->i_prev_dts == dts ) { x264_cli_log( "flv", X264_LOG_WARNING, "duplicate DTS %I64d generated by rounding\n" " decoding framerate cannot exceed 1000fps\n", dts ); // x264_cli_log( "flv", X264_LOG_WARNING, "duplicate DTS %"PRId64" generated by rounding\n" // " decoding framerate cannot exceed 1000fps\n", dts ); } if( p_flv->i_prev_cts == cts ) { x264_cli_log( "flv", X264_LOG_WARNING, "duplicate CTS %I64d generated by rounding\n" " composition framerate cannot exceed 1000fps\n", cts ); // x264_cli_log( "flv", X264_LOG_WARNING, "duplicate CTS %"PRId64" generated by rounding\n" // " composition framerate cannot exceed 1000fps\n", cts ); } } p_flv->i_prev_dts = dts; p_flv->i_prev_cts = cts; // A new frame - write packet header flv_put_byte( c, FLV_TAG_TYPE_VIDEO ); flv_put_be24( c, 0 ); // calculated later flv_put_be24( c, dts ); flv_put_byte( c, dts >> 24 ); flv_put_be24( c, 0 ); p_flv->start = c->d_cur; flv_put_byte( c, p_picture->b_keyframe ? FLV_FRAME_KEY : FLV_FRAME_INTER ); flv_put_byte( c, 1 ); // AVC NALU flv_put_be24( c, offset ); if( p_flv->sei ) { flv_append_data( c, p_flv->sei, p_flv->sei_len ); free( p_flv->sei ); p_flv->sei = NULL; } flv_append_data( c, p_nalu, i_size ); unsigned length = c->d_cur - p_flv->start; flv_rewrite_amf_be24( c, length, p_flv->start - 10 ); flv_put_be32( c, 11 + length ); // Last tag size CHECK( flv_flush_data( c ) ); p_flv->i_framenum++; return i_size; }