diff options
Diffstat (limited to 'tinyDAV/src/codecs/vpx/tdav_codec_vp8.c')
| -rw-r--r-- | tinyDAV/src/codecs/vpx/tdav_codec_vp8.c | 1059 |
1 files changed, 1059 insertions, 0 deletions
diff --git a/tinyDAV/src/codecs/vpx/tdav_codec_vp8.c b/tinyDAV/src/codecs/vpx/tdav_codec_vp8.c new file mode 100644 index 0000000..2c097e4 --- /dev/null +++ b/tinyDAV/src/codecs/vpx/tdav_codec_vp8.c @@ -0,0 +1,1059 @@ +/* +* Copyright (C) 2011-2015 Doubango Telecom <http://www.doubango.org> +* +* This file is part of Open Source Doubango Framework. +* +* DOUBANGO 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 3 of the License, or +* (at your option) any later version. +* +* DOUBANGO 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 DOUBANGO. +* +*/ + +/**@file tdav_codec_vp8.c +* @brief VP8 codec +* The RTP packetizer/depacketizer follows draft-ietf-payload-vp8 and draft-bankoski-vp8-bitstream-05 +* Google's VP8 (http://www.webmproject.org/) encoder/decoder +* +* We require v1.3.0 (2013-12-02 10:37:51) or later. For iOS, because of issue 423 (https://code.google.com/p/doubango/issues/detail?id=423) we require a version after "Mon, 28 Apr 2014 22:42:23 +0100 (14:42 -0700)" integrating fix in http://git.chromium.org/gitweb/?p=webm/libvpx.git;a=commit;h=33df6d1fc1d268b4901b74b4141f83594266f041 +* +*/ +#include "tinydav/codecs/vpx/tdav_codec_vp8.h" + +#if HAVE_LIBVPX + +#if TDAV_UNDER_WINDOWS +# include <windows.h> +#endif + +#include "tinyrtp/rtp/trtp_rtp_packet.h" + +#include "tinymedia/tmedia_params.h" +#include "tinymedia/tmedia_defaults.h" + +#include "tsk_string.h" +#include "tsk_memory.h" +#include "tsk_time.h" +#include "tsk_debug.h" + +#define VPX_CODEC_DISABLE_COMPAT 1 /* strict compliance with the latest SDK by disabling some backwards compatibility */ +#include <vpx/vpx_encoder.h> +#include <vpx/vpx_decoder.h> +#include <vpx/vp8cx.h> +#include <vpx/vp8dx.h> + +#if !defined(TDAV_VP8_DISABLE_EXTENSION) +# define TDAV_VP8_DISABLE_EXTENSION 0 /* Set X fied value to zero */ +#endif + +#if TDAV_VP8_DISABLE_EXTENSION +# define TDAV_VP8_PAY_DESC_SIZE 1 +#else +# define TDAV_VP8_PAY_DESC_SIZE 4 +#endif +#define TDAV_SYSTEM_CORES_COUNT 0 +#define TDAV_VP8_GOP_SIZE_IN_SECONDS 60 +#define TDAV_VP8_RTP_PAYLOAD_MAX_SIZE 1050 +#if !defined(TDAV_VP8_MAX_BANDWIDTH_KB) +# define TDAV_VP8_MAX_BANDWIDTH_KB 6000 +#endif +#if !defined(TDAV_VP8_MIN_BANDWIDTH_KB) +# define TDAV_VP8_MIN_BANDWIDTH_KB 100 +#endif + +/* VP8 codec */ +typedef struct tdav_codec_vp8_s +{ + TMEDIA_DECLARE_CODEC_VIDEO; + + // Encoder + struct { + vpx_codec_enc_cfg_t cfg; + tsk_bool_t initialized; + vpx_codec_pts_t pts; + vpx_codec_ctx_t context; + unsigned pic_id : 15; + uint64_t frame_count; + tsk_bool_t force_idr; + int rotation; + + struct { + uint8_t* ptr; + tsk_size_t size; + } rtp; + + tsk_mutex_handle_t* mutex; + } encoder; + + // decoder + struct { + vpx_codec_dec_cfg_t cfg; + unsigned initialized : 1; + vpx_codec_ctx_t context; + void* accumulator; + tsk_size_t accumulator_pos; + tsk_size_t accumulator_size; + tsk_size_t first_part_size; + uint16_t last_seq; + uint32_t last_timestamp; + tsk_bool_t idr; + tsk_bool_t corrupted; + } decoder; +} +tdav_codec_vp8_t; + +#define vp8_interface_enc (vpx_codec_vp8_cx()) +#define vp8_interface_dec (vpx_codec_vp8_dx()) + +static int tdav_codec_vp8_open_encoder(tdav_codec_vp8_t* self); +static int tdav_codec_vp8_open_decoder(tdav_codec_vp8_t* self); +static int tdav_codec_vp8_close_encoder(tdav_codec_vp8_t* self); +static int tdav_codec_vp8_close_decoder(tdav_codec_vp8_t* self); + +static void tdav_codec_vp8_encap(tdav_codec_vp8_t* self, const vpx_codec_cx_pkt_t *pkt); +static void tdav_codec_vp8_rtp_callback(tdav_codec_vp8_t *self, const void *data, tsk_size_t size, uint32_t partID, tsk_bool_t part_start, tsk_bool_t non_ref, tsk_bool_t last); + +/* ============ VP8 Plugin interface ================= */ + +static int tdav_codec_vp8_set(tmedia_codec_t* self, const tmedia_param_t* param) +{ + tdav_codec_vp8_t* vp8 = (tdav_codec_vp8_t*)self; + vpx_codec_err_t vpx_ret = VPX_CODEC_OK; + tsk_bool_t reconf = tsk_false; + + if (param->value_type == tmedia_pvt_int32) { + if (tsk_striequals(param->key, "action")) { + tmedia_codec_action_t action = (tmedia_codec_action_t)TSK_TO_INT32((uint8_t*)param->value); + switch (action) { + case tmedia_codec_action_encode_idr: + { + vp8->encoder.force_idr = tsk_true; + return 0; + } + case tmedia_codec_action_bw_down: + { + vp8->encoder.cfg.rc_target_bitrate = TSK_CLAMP(0, (int32_t)((vp8->encoder.cfg.rc_target_bitrate << 1) / 3), TMEDIA_CODEC(vp8)->bandwidth_max_upload); + TSK_DEBUG_INFO("New target bitrate = %d kbps", vp8->encoder.cfg.rc_target_bitrate); + reconf = tsk_true; + break; + } + case tmedia_codec_action_bw_up: + { + vp8->encoder.cfg.rc_target_bitrate = TSK_CLAMP(0, (int32_t)((vp8->encoder.cfg.rc_target_bitrate * 3) >> 1), TMEDIA_CODEC(vp8)->bandwidth_max_upload); + TSK_DEBUG_INFO("New target bitrate = %d kbps", vp8->encoder.cfg.rc_target_bitrate); + reconf = tsk_true; + break; + } + } + } + else if (tsk_striequals(param->key, "bw_kbps")) { // both up and down (from the SDP) + int32_t max_bw_userdefine = tmedia_defaults_get_bandwidth_video_upload_max(); + int32_t max_bw_new = *((int32_t*)param->value); + if (max_bw_userdefine > 0) { + // do not use more than what the user defined in it's configuration + TMEDIA_CODEC(vp8)->bandwidth_max_upload = TSK_MIN(max_bw_new, max_bw_userdefine); + } + else { + TMEDIA_CODEC(vp8)->bandwidth_max_upload = max_bw_new; + } + vp8->encoder.cfg.rc_target_bitrate = TSK_CLAMP(0, vp8->encoder.cfg.rc_target_bitrate, TMEDIA_CODEC(vp8)->bandwidth_max_upload); + TSK_DEBUG_INFO("New target bitrate = %d kbps", vp8->encoder.cfg.rc_target_bitrate); + reconf = tsk_true; + } + else if (tsk_striequals(param->key, "bandwidth-max-upload")) { + int32_t bw_max_upload = *((int32_t*)param->value); + TSK_DEBUG_INFO("VP8 codec: bandwidth-max-upload=%d", bw_max_upload); + TMEDIA_CODEC(vp8)->bandwidth_max_upload = bw_max_upload; + reconf = tsk_true; + } + else if (tsk_striequals(param->key, "rotation")) { + // IMPORTANT: changing resolution requires at least libvpx v1.1.0 "Eider" + int32_t rotation = *((int32_t*)param->value); + if (vp8->encoder.rotation != rotation) { + vp8->encoder.rotation = rotation; + vp8->encoder.cfg.g_w = (rotation == 90 || rotation == 270) ? TMEDIA_CODEC_VIDEO(vp8)->out.height : TMEDIA_CODEC_VIDEO(vp8)->out.width; + vp8->encoder.cfg.g_h = (rotation == 90 || rotation == 270) ? TMEDIA_CODEC_VIDEO(vp8)->out.width : TMEDIA_CODEC_VIDEO(vp8)->out.height; + reconf = tsk_true; + } + } + } + + if (reconf) { + if (vp8->encoder.initialized) { + // The encoder isn't thread safe. Without this lock (and the one in the encode() function) we may have corruptions in the video (issue report from GE). + // Google says the encoder is thread-safe but this is not the case. But it is *multi-instance* thread-safe. + tsk_mutex_lock(vp8->encoder.mutex); + if ((vpx_ret = vpx_codec_enc_config_set(&vp8->encoder.context, &vp8->encoder.cfg)) != VPX_CODEC_OK) { + TSK_DEBUG_ERROR("vpx_codec_enc_config_set failed with error =%s", vpx_codec_err_to_string(vpx_ret)); + } + tsk_mutex_unlock(vp8->encoder.mutex); + } + return (vpx_ret == VPX_CODEC_OK) ? 0 : -2; + } + + return -1; +} + +static int tdav_codec_vp8_open(tmedia_codec_t* self) +{ + tdav_codec_vp8_t* vp8 = (tdav_codec_vp8_t*)self; + int ret; + + if (!vp8) { + TSK_DEBUG_ERROR("Invalid parameter"); + return -1; + } + + /* the caller (base class) already checked that the codec is not opened */ + + + // Encoder + if ((ret = tdav_codec_vp8_open_encoder(vp8))) { + return ret; + } + + // Decoder + if ((ret = tdav_codec_vp8_open_decoder(vp8))) { + return ret; + } + + return ret; +} + +static int tdav_codec_vp8_close(tmedia_codec_t* self) +{ + tdav_codec_vp8_t* vp8 = (tdav_codec_vp8_t*)self; + + if (!vp8) { + TSK_DEBUG_ERROR("Invalid parameter"); + return -1; + } + + tdav_codec_vp8_close_encoder(vp8); + tdav_codec_vp8_close_decoder(vp8); + + return 0; +} + +static tsk_size_t tdav_codec_vp8_encode(tmedia_codec_t* self, const void* in_data, tsk_size_t in_size, void** out_data, tsk_size_t* out_max_size) +{ + tdav_codec_vp8_t* vp8 = (tdav_codec_vp8_t*)self; + vpx_enc_frame_flags_t flags = 0; + vpx_codec_err_t vpx_ret = VPX_CODEC_OK; + const vpx_codec_cx_pkt_t *pkt; + vpx_codec_iter_t iter = tsk_null; + vpx_image_t image = {0}; + + if (!vp8 || !in_data || !in_size) { + TSK_DEBUG_ERROR("Invalid parameter"); + return 0; + } + + if (in_size != (vp8->encoder.context.config.enc->g_w * vp8->encoder.context.config.enc->g_h * 3) >> 1) { + TSK_DEBUG_ERROR("Invalid size"); + return 0; + } + + // wrap yuv420 buffer + if (!vpx_img_wrap(&image, VPX_IMG_FMT_I420, vp8->encoder.context.config.enc->g_w, vp8->encoder.context.config.enc->g_h, 1, (unsigned char*)in_data)) { + TSK_DEBUG_ERROR("vpx_img_wrap failed"); + return 0; + } + + // encode data + ++vp8->encoder.pts; + if (vp8->encoder.force_idr) { + flags |= VPX_EFLAG_FORCE_KF; + vp8->encoder.force_idr = tsk_false; + } + tsk_mutex_lock(vp8->encoder.mutex); // must + vpx_ret = vpx_codec_encode(&vp8->encoder.context, &image, vp8->encoder.pts, 1, flags, VPX_DL_REALTIME); + tsk_mutex_unlock(vp8->encoder.mutex); + + if (vpx_ret != VPX_CODEC_OK) { + TSK_DEBUG_ERROR("vpx_codec_encode failed with error =%s", vpx_codec_err_to_string(vpx_ret)); + goto bail; + } + + ++vp8->encoder.frame_count; + ++vp8->encoder.pic_id; + + while ((pkt = vpx_codec_get_cx_data(&vp8->encoder.context, &iter))) { + switch (pkt->kind) { + case VPX_CODEC_CX_FRAME_PKT: + { + tdav_codec_vp8_encap(vp8, pkt); + break; + } + default: + case VPX_CODEC_STATS_PKT: /**< Two-pass statistics for this frame */ + case VPX_CODEC_PSNR_PKT: /**< PSNR statistics for this frame */ + case VPX_CODEC_CUSTOM_PKT: /**< Algorithm extensions */ + { + TSK_DEBUG_INFO("pkt->kind=%d not supported", (int)pkt->kind); + break; + } + } + } + +bail: + vpx_img_free(&image); + return 0; +} + +static tsk_size_t tdav_codec_vp8_decode(tmedia_codec_t* self, const void* in_data, tsk_size_t in_size, void** out_data, tsk_size_t* out_max_size, const tsk_object_t* proto_hdr) +{ + tdav_codec_vp8_t* vp8 = (tdav_codec_vp8_t*)self; + const trtp_rtp_header_t* rtp_hdr = proto_hdr; + const uint8_t* pdata = in_data; + const uint8_t* pdata_end = (pdata + in_size); + tsk_size_t ret = 0; + tsk_bool_t fatal_error = tsk_false; + static const tsk_size_t xmax_size = (3840 * 2160 * 3) >> 3; // >>3 instead of >>1 (not an error) + uint8_t S, PartID; + + if (!self || !in_data || in_size < 1 || !out_data || !vp8->decoder.initialized) { + TSK_DEBUG_ERROR("Invalid parameter"); + return 0; + } + + { /* 4.2. VP8 Payload Descriptor */ + uint8_t X, R, N, I, L, T, K;//TODO: store + + X = ((*pdata & 0x80) >> 7); + R = ((*pdata & 0x40) >> 6); + if (R) { + TSK_DEBUG_ERROR("R<>0"); + fatal_error = tsk_true; + goto bail; + } + N = ((*pdata & 0x20) >> 5); + S = ((*pdata & 0x10) >> 4); + PartID = (*pdata & 0x0F); + // skip "REQUIRED" header + if (++pdata >= pdata_end) { + TSK_DEBUG_ERROR("Too short"); goto bail; + } + // check "OPTIONAL" headers + if (X) { + I = (*pdata & 0x80); + L = (*pdata & 0x40); + T = (*pdata & 0x20); + K = (*pdata & 0x10); + if (++pdata >= pdata_end) { + TSK_DEBUG_ERROR("Too short"); goto bail; + } + + if (I) { + if (*pdata & 0x80) { // M + // PictureID on 16bits + if ((pdata += 2) >= pdata_end) { + TSK_DEBUG_ERROR("Too short"); goto bail; + } + } + else { + // PictureID on 8bits + if (++pdata >= pdata_end) { + TSK_DEBUG_ERROR("Too short"); goto bail; + } + } + } + if (L) { + if (++pdata >= pdata_end) { + TSK_DEBUG_ERROR("Too short"); goto bail; + } + } + if (T || K) { + if (++pdata >= pdata_end) { + TSK_DEBUG_ERROR("Too short"); goto bail; + } + } + } + } + + in_size = (pdata_end - pdata); + + // Packet lost? + if (vp8->decoder.last_seq && (vp8->decoder.last_seq + 1) != rtp_hdr->seq_num) { + TSK_DEBUG_INFO("[VP8] Packet loss, seq_num=%d", (vp8->decoder.last_seq + 1)); + vp8->decoder.corrupted = tsk_true; + } + vp8->decoder.last_seq = rtp_hdr->seq_num; + + // New frame ? + if (vp8->decoder.last_timestamp != rtp_hdr->timestamp) { + /* 4.3. VP8 Payload Header + Note that the header is present only in packets + which have the S bit equal to one and the PartID equal to zero in the + payload descriptor. Subsequent packets for the same frame do not + carry the payload header. + 0 1 2 3 4 5 6 7 + +-+-+-+-+-+-+-+-+ + |Size0|H| VER |P| + +-+-+-+-+-+-+-+-+ + | Size1 | + +-+-+-+-+-+-+-+-+ + | Size2 | + +-+-+-+-+-+-+-+-+ + | Bytes 4..N of | + | VP8 payload | + : : + +-+-+-+-+-+-+-+-+ + | OPTIONAL RTP | + | padding | + : : + +-+-+-+-+-+-+-+-+ + P: Inverse key frame flag. When set to 0 the current frame is a key + frame. When set to 1 the current frame is an interframe. Defined + in [RFC6386] + */ + + // Reset accumulator position + vp8->decoder.accumulator_pos = 0; + + // Make sure the header is present + if (S != 1 || PartID != 0 || in_size < 3) { + TSK_DEBUG_WARN("VP8 payload header is missing"); +#if 0 + if (in_size < 3) +#endif + { + fatal_error = tsk_true; + goto bail; + } + } + { + /* SizeN: The size of the first partition in bytes is calculated from + the 19 bits in Size0, Size1, and Size2 as 1stPartitionSize = Size0 + + 8 * Size1 + 2048 * Size2. [RFC6386]. */ + vp8->decoder.first_part_size = ((pdata[0] >> 5) & 0xFF) + 8 * pdata[1] + 2048 * pdata[2]; + } + + // Starting new frame...reset "corrupted" value + vp8->decoder.corrupted = tsk_false; + + // Key frame? + vp8->decoder.idr = !(pdata[0] & 0x01); + + // Update timestamp + vp8->decoder.last_timestamp = rtp_hdr->timestamp; + } + + if (in_size > xmax_size) { + vp8->decoder.accumulator_pos = 0; + TSK_DEBUG_ERROR("%u too big to contain valid encoded data. xmax_size=%u", (unsigned)in_size, (unsigned)xmax_size); + fatal_error = tsk_true; + goto bail; + } + // start-accumulator + if (!vp8->decoder.accumulator) { + if (!(vp8->decoder.accumulator = tsk_calloc(in_size, sizeof(uint8_t)))) { + TSK_DEBUG_ERROR("Failed to allocated new buffer"); + fatal_error = tsk_true; + goto bail; + } + vp8->decoder.accumulator_size = in_size; + } + if ((vp8->decoder.accumulator_pos + in_size) >= xmax_size) { + TSK_DEBUG_ERROR("BufferOverflow"); + vp8->decoder.accumulator_pos = 0; + fatal_error = tsk_true; + goto bail; + } + if ((vp8->decoder.accumulator_pos + in_size) > vp8->decoder.accumulator_size) { + if (!(vp8->decoder.accumulator = tsk_realloc(vp8->decoder.accumulator, (vp8->decoder.accumulator_pos + in_size)))) { + TSK_DEBUG_ERROR("Failed to reallocated new buffer"); + vp8->decoder.accumulator_pos = 0; + vp8->decoder.accumulator_size = 0; + fatal_error = tsk_true; + goto bail; + } + vp8->decoder.accumulator_size = (vp8->decoder.accumulator_pos + in_size); + } + + memcpy(&((uint8_t*)vp8->decoder.accumulator)[vp8->decoder.accumulator_pos], pdata, in_size); + vp8->decoder.accumulator_pos += in_size; + // end-accumulator + + // Decode the frame if we have a marker or the first partition is complete and not corrupted + if (rtp_hdr->marker /*|| (!vp8->decoder.corrupted && vp8->decoder.first_part_size == vp8->decoder.accumulator_pos)*/) { + vpx_image_t *img; + vpx_codec_iter_t iter = tsk_null; + vpx_codec_err_t vpx_ret; + const uint8_t* pay_ptr = (const uint8_t*)vp8->decoder.accumulator; + const tsk_size_t pay_size = vp8->decoder.accumulator_pos; + + // in all cases: reset accumulator position + vp8->decoder.accumulator_pos = 0; + +#if 0 /* http://groups.google.com/a/webmproject.org/group/apps-devel/browse_thread/thread/c84438e70fe122fa/2dfc322018aa22a8 */ + // libvpx will crash very ofen when the frame is corrupted => for now we decided not to decode such frame + // according to the latest release there is a function to check if the frame + // is corrupted or not => To be checked + if(vp8->decoder.corrupted) { + vp8->decoder.corrupted = tsk_false; + goto bail; + } +#endif + + if (pay_size < vp8->decoder.first_part_size) { + TSK_DEBUG_WARN("[VP8] No enough bytes for the first part: %u < %u", (unsigned)pay_size, (unsigned)vp8->decoder.first_part_size); + // Not a fatal error + goto bail; + } + + vpx_ret = vpx_codec_decode(&vp8->decoder.context, pay_ptr, (int)pay_size, tsk_null, 0); + + if (vpx_ret != VPX_CODEC_OK) { + TSK_DEBUG_INFO("vpx_codec_decode failed with error =%s", vpx_codec_err_to_string(vpx_ret)); + fatal_error = tsk_true; + goto bail; + } + else if (vp8->decoder.idr) { + TSK_DEBUG_INFO("Decoded VP8 IDR"); + if (TMEDIA_CODEC_VIDEO(self)->in.callback) { + TMEDIA_CODEC_VIDEO(self)->in.result.type = tmedia_video_decode_result_type_idr; + TMEDIA_CODEC_VIDEO(self)->in.result.proto_hdr = proto_hdr; + TMEDIA_CODEC_VIDEO(self)->in.callback(&TMEDIA_CODEC_VIDEO(self)->in.result); + } + } + + // copy decoded data + ret = 0; + while ((img = vpx_codec_get_frame(&vp8->decoder.context, &iter))) { + unsigned int plane, y; + tsk_size_t xsize; + + // update sizes + TMEDIA_CODEC_VIDEO(vp8)->in.width = img->d_w; + TMEDIA_CODEC_VIDEO(vp8)->in.height = img->d_h; + xsize = (TMEDIA_CODEC_VIDEO(vp8)->in.width * TMEDIA_CODEC_VIDEO(vp8)->in.height * 3) >> 1; + // allocate destination buffer + if (*out_max_size < xsize) { + if (!(*out_data = tsk_realloc(*out_data, xsize))) { + TSK_DEBUG_ERROR("Failed to allocate new buffer"); + *out_max_size = 0; + goto bail; + } + *out_max_size = xsize; + } + + // layout picture + for (plane = 0; plane < 3; plane++) { + unsigned char *buf = img->planes[plane]; + for (y = 0; y < img->d_h >> (plane ? 1 : 0); y++) { + unsigned int w_count = img->d_w >> (plane ? 1 : 0); + if ((ret + w_count) > *out_max_size) { + TSK_DEBUG_ERROR("BufferOverflow"); + ret = 0; + goto bail; + } + memcpy(((uint8_t*)*out_data) + ret, buf, w_count); + ret += w_count; + buf += img->stride[plane]; + } + } + } + } + +bail: + if (fatal_error && TMEDIA_CODEC_VIDEO(self)->in.callback) { + TMEDIA_CODEC_VIDEO(self)->in.result.type = tmedia_video_decode_result_type_error; + TMEDIA_CODEC_VIDEO(self)->in.result.proto_hdr = proto_hdr; + TMEDIA_CODEC_VIDEO(self)->in.callback(&TMEDIA_CODEC_VIDEO(self)->in.result); + } + + // vp8->decoder.last_PartID = PartID; + // vp8->decoder.last_S = S; + // vp8->decoder.last_N = N; + return ret; +} + +static tsk_bool_t tdav_codec_vp8_sdp_att_match(const tmedia_codec_t* codec, const char* att_name, const char* att_value) +{ +#if 0 + if(tsk_striequals(att_name, "fmtp")) { + unsigned width, height, fps; + if(tmedia_parse_video_fmtp(att_value, TMEDIA_CODEC_VIDEO(codec)->pref_size, &width, &height, &fps)) { + TSK_DEBUG_ERROR("Failed to match fmtp=%s", att_value); + return tsk_false; + } + TMEDIA_CODEC_VIDEO(codec)->in.width = TMEDIA_CODEC_VIDEO(codec)->out.width = width; + TMEDIA_CODEC_VIDEO(codec)->in.height = TMEDIA_CODEC_VIDEO(codec)->out.height = height; + TMEDIA_CODEC_VIDEO(codec)->in.fps = TMEDIA_CODEC_VIDEO(codec)->out.fps = fps; + } + else +#endif + if (tsk_striequals(att_name, "imageattr")) { + unsigned in_width, in_height, out_width, out_height; + if (tmedia_parse_video_imageattr(att_value, TMEDIA_CODEC_VIDEO(codec)->pref_size, &in_width, &in_height, &out_width, &out_height) != 0) { + return tsk_false; + } + TMEDIA_CODEC_VIDEO(codec)->in.width = in_width; + TMEDIA_CODEC_VIDEO(codec)->in.height = in_height; + TMEDIA_CODEC_VIDEO(codec)->out.width = out_width; + TMEDIA_CODEC_VIDEO(codec)->out.height = out_height; + } + + return tsk_true; +} + +static char* tdav_codec_vp8_sdp_att_get(const tmedia_codec_t* codec, const char* att_name) +{ +#if 0 + if(tsk_striequals(att_name, "fmtp")) { + return tmedia_get_video_fmtp(TMEDIA_CODEC_VIDEO(codec)->pref_size); + } + else +#endif + if (tsk_striequals(att_name, "imageattr")) { + return tmedia_get_video_imageattr(TMEDIA_CODEC_VIDEO(codec)->pref_size, + TMEDIA_CODEC_VIDEO(codec)->in.width, TMEDIA_CODEC_VIDEO(codec)->in.height, TMEDIA_CODEC_VIDEO(codec)->out.width, TMEDIA_CODEC_VIDEO(codec)->out.height); + } + return tsk_null; +} + +/* ============ VP8 object definition ================= */ + +/* constructor */ +static tsk_object_t* tdav_codec_vp8_ctor(tsk_object_t * self, va_list * app) +{ + tdav_codec_vp8_t *vp8 = self; + if (vp8) { + /* init base: called by tmedia_codec_create() */ + /* init self */ + } + return self; +} +/* destructor */ +static tsk_object_t* tdav_codec_vp8_dtor(tsk_object_t * self) +{ + tdav_codec_vp8_t *vp8 = self; + TSK_DEBUG_INFO("*** tdav_codec_vp8_dtor destroyed ***"); + if (vp8) { + /* deinit base */ + tmedia_codec_video_deinit(vp8); + /* deinit self */ + tdav_codec_vp8_close_encoder(vp8); + tdav_codec_vp8_close_decoder(vp8); + } + + return self; +} +/* object definition */ +static const tsk_object_def_t tdav_codec_vp8_def_s = +{ + sizeof(tdav_codec_vp8_t), + tdav_codec_vp8_ctor, + tdav_codec_vp8_dtor, + tmedia_codec_cmp, +}; +/* plugin definition*/ +static const tmedia_codec_plugin_def_t tdav_codec_vp8_plugin_def_s = +{ + &tdav_codec_vp8_def_s, + + tmedia_video, + tmedia_codec_id_vp8, + "VP8", + "VP8 codec (libvpx)", + TMEDIA_CODEC_FORMAT_VP8, + tsk_true, + 90000, // rate + + /* audio */ + { 0 }, + + /* video (defaul width,height,fps) */ + { 176, 144, 0 }, // fps is @deprecated + + tdav_codec_vp8_set, + tdav_codec_vp8_open, + tdav_codec_vp8_close, + tdav_codec_vp8_encode, + tdav_codec_vp8_decode, + tdav_codec_vp8_sdp_att_match, + tdav_codec_vp8_sdp_att_get +}; +const tmedia_codec_plugin_def_t *tdav_codec_vp8_plugin_def_t = &tdav_codec_vp8_plugin_def_s; + +/* ============ Internal functions ================= */ + +int tdav_codec_vp8_open_encoder(tdav_codec_vp8_t* self) +{ + vpx_codec_err_t vpx_ret; + vpx_enc_frame_flags_t enc_flags = 0; // VPX_EFLAG_XXX + + if (self->encoder.initialized) { + TSK_DEBUG_ERROR("VP8 encoder already inialized"); + return -1; + } + + if ((vpx_ret = vpx_codec_enc_config_default(vp8_interface_enc, &self->encoder.cfg, 0)) != VPX_CODEC_OK) { + TSK_DEBUG_ERROR("vpx_codec_enc_config_default failed with error =%s", vpx_codec_err_to_string(vpx_ret)); + return -2; + } + self->encoder.cfg.g_timebase.num = 1; + self->encoder.cfg.g_timebase.den = TMEDIA_CODEC_VIDEO(self)->out.fps; + self->encoder.cfg.rc_target_bitrate = TSK_CLAMP( + 0, + tmedia_get_video_bandwidth_kbps_2(TMEDIA_CODEC_VIDEO(self)->out.width, TMEDIA_CODEC_VIDEO(self)->out.height, TMEDIA_CODEC_VIDEO(self)->out.fps), + TMEDIA_CODEC(self)->bandwidth_max_upload + ); + self->encoder.cfg.g_w = (self->encoder.rotation == 90 || self->encoder.rotation == 270) ? TMEDIA_CODEC_VIDEO(self)->out.height : TMEDIA_CODEC_VIDEO(self)->out.width; + self->encoder.cfg.g_h = (self->encoder.rotation == 90 || self->encoder.rotation == 270) ? TMEDIA_CODEC_VIDEO(self)->out.width : TMEDIA_CODEC_VIDEO(self)->out.height; + self->encoder.cfg.kf_mode = VPX_KF_AUTO; + /*self->encoder.cfg.kf_min_dist =*/ self->encoder.cfg.kf_max_dist = (TDAV_VP8_GOP_SIZE_IN_SECONDS * TMEDIA_CODEC_VIDEO(self)->out.fps); +#if defined(VPX_ERROR_RESILIENT_DEFAULT) + self->encoder.cfg.g_error_resilient = VPX_ERROR_RESILIENT_DEFAULT; +#else + self->encoder.cfg.g_error_resilient = 1; +#endif +#if defined(VPX_ERROR_RESILIENT_PARTITIONS) + self->encoder.cfg.g_error_resilient |= VPX_ERROR_RESILIENT_PARTITIONS; +#endif +#if defined(VPX_CODEC_USE_OUTPUT_PARTITION) + enc_flags |= VPX_CODEC_USE_OUTPUT_PARTITION; +#endif + self->encoder.cfg.g_lag_in_frames = 0; +#if TDAV_UNDER_WINDOWS + { + SYSTEM_INFO SystemInfo; + GetSystemInfo(&SystemInfo); + self->encoder.cfg.g_threads = SystemInfo.dwNumberOfProcessors; + } +#endif + self->encoder.cfg.rc_end_usage = VPX_CBR; + self->encoder.cfg.g_pass = VPX_RC_ONE_PASS; +#if 0 + self->encoder.cfg.rc_dropframe_thresh = 30; + self->encoder.cfg.rc_resize_allowed = 0; + self->encoder.cfg.rc_min_quantizer = 2; + self->encoder.cfg.rc_max_quantizer = 56; + self->encoder.cfg.rc_undershoot_pct = 100; + self->encoder.cfg.rc_overshoot_pct = 15; + self->encoder.cfg.rc_buf_initial_sz = 500; + self->encoder.cfg.rc_buf_optimal_sz = 600; + self->encoder.cfg.rc_buf_sz = 1000; +#endif + + if ((vpx_ret = vpx_codec_enc_init(&self->encoder.context, vp8_interface_enc, &self->encoder.cfg, enc_flags)) != VPX_CODEC_OK) { + TSK_DEBUG_ERROR("vpx_codec_enc_init failed with error =%s", vpx_codec_err_to_string(vpx_ret)); + return -3; + } + self->encoder.pic_id = /*(rand() ^ rand()) % 0x7FFF*/0/*Use zero: why do you want to make your life harder?*/; + + /* vpx_codec_control(&self->encoder.context, VP8E_SET_STATIC_THRESHOLD, 800); */ +#if !TDAV_UNDER_MOBILE /* must not remove: crash on Android for sure and probably on iOS also (all ARM devices ?) */ + vpx_codec_control(&self->encoder.context, VP8E_SET_NOISE_SENSITIVITY, 2); +#elif TDAV_UNDER_WINDOWS_CE + vpx_codec_control(&self->encoder.context, VP8E_SET_NOISE_SENSITIVITY, 16); + vpx_codec_control(&self->encoder.context, VP8E_SET_CPUUSED, 16); + vpx_codec_control(&self->encoder.context, VP8E_SET_STATIC_THRESHOLD, 16); + vpx_codec_control(&self->encoder.context, VP8E_SET_SHARPNESS, 16); +#endif + + // Set number of partitions +#if defined(VPX_CODEC_USE_OUTPUT_PARTITION) + { + unsigned _s = TMEDIA_CODEC_VIDEO(self)->out.height * TMEDIA_CODEC_VIDEO(self)->out.width; + if (_s < (352 * 288)) { + vpx_codec_control(&self->encoder.context, VP8E_SET_TOKEN_PARTITIONS, VP8_ONE_TOKENPARTITION); + } + else if (_s < (352 * 288) * 2 * 2) { + vpx_codec_control(&self->encoder.context, VP8E_SET_TOKEN_PARTITIONS, VP8_TWO_TOKENPARTITION); + } + else if (_s < (352 * 288) * 4 * 4) { + vpx_codec_control(&self->encoder.context, VP8E_SET_TOKEN_PARTITIONS, VP8_FOUR_TOKENPARTITION); + } + else if (_s < (352 * 288) * 8 * 8) { + vpx_codec_control(&self->encoder.context, VP8E_SET_TOKEN_PARTITIONS, VP8_EIGHT_TOKENPARTITION); + } + } +#endif + + // Create the mutex if not already done + if (!self->encoder.mutex && !(self->encoder.mutex = tsk_mutex_create())) { + vpx_codec_destroy(&self->encoder.context); + TSK_DEBUG_ERROR("Failed to create mutex"); + return -4; + } + + self->encoder.frame_count = 0; + + self->encoder.initialized = tsk_true; + + TSK_DEBUG_INFO("[VP8] target_bitrate=%d kbps", self->encoder.cfg.rc_target_bitrate); + + return 0; +} + +int tdav_codec_vp8_open_decoder(tdav_codec_vp8_t* self) +{ + vpx_codec_err_t vpx_ret; + vpx_codec_caps_t dec_caps; + vpx_codec_flags_t dec_flags = 0; +#if !TDAV_UNDER_MOBILE + static vp8_postproc_cfg_t __pp = { VP8_DEBLOCK | VP8_DEMACROBLOCK, 4, 0 }; +#endif + + if (self->decoder.initialized) { + TSK_DEBUG_ERROR("VP8 decoder already initialized"); + return -1; + } + + self->decoder.cfg.w = TMEDIA_CODEC_VIDEO(self)->out.width; + self->decoder.cfg.h = TMEDIA_CODEC_VIDEO(self)->out.height; +#if TDAV_UNDER_WINDOWS + { + SYSTEM_INFO SystemInfo; + GetSystemInfo(&SystemInfo); + self->decoder.cfg.threads = SystemInfo.dwNumberOfProcessors; + } +#endif + + dec_caps = vpx_codec_get_caps(&vpx_codec_vp8_dx_algo); +#if !TDAV_UNDER_MOBILE + if (dec_caps & VPX_CODEC_CAP_POSTPROC) { + dec_flags |= VPX_CODEC_USE_POSTPROC; + } +#endif +#if defined(VPX_CODEC_CAP_ERROR_CONCEALMENT) + if (dec_caps & VPX_CODEC_CAP_ERROR_CONCEALMENT) { + dec_flags |= VPX_CODEC_USE_ERROR_CONCEALMENT; + } +#endif + + if ((vpx_ret = vpx_codec_dec_init(&self->decoder.context, vp8_interface_dec, &self->decoder.cfg, dec_flags)) != VPX_CODEC_OK) { + TSK_DEBUG_ERROR("vpx_codec_dec_init failed with error =%s", vpx_codec_err_to_string(vpx_ret)); + return -4; + } +#if !TDAV_UNDER_MOBILE + if ((vpx_ret = vpx_codec_control(&self->decoder.context, VP8_SET_POSTPROC, &__pp))) { + TSK_DEBUG_WARN("vpx_codec_dec_init failed with error =%s", vpx_codec_err_to_string(vpx_ret)); + } +#endif + self->decoder.initialized = tsk_true; + + return 0; +} + +int tdav_codec_vp8_close_encoder(tdav_codec_vp8_t* self) +{ + TSK_DEBUG_INFO("tdav_codec_vp8_close_encoder(begin)"); + if (self->encoder.initialized) { + vpx_codec_destroy(&self->encoder.context); + self->encoder.initialized = tsk_false; + } + if (self->encoder.mutex) { + tsk_mutex_destroy(&self->encoder.mutex); + } + TSK_FREE(self->encoder.rtp.ptr); + self->encoder.rtp.size = 0; + self->encoder.rotation = 0; // reset rotation + TSK_DEBUG_INFO("tdav_codec_vp8_close_encoder(end)"); + return 0; +} + +int tdav_codec_vp8_close_decoder(tdav_codec_vp8_t* self) +{ + TSK_DEBUG_INFO("tdav_codec_vp8_close_decoder(begin)"); + if (self->decoder.initialized) { + vpx_codec_destroy(&self->decoder.context); + self->decoder.initialized = tsk_false; + } + TSK_FREE(self->decoder.accumulator); + self->decoder.accumulator_size = 0; + self->decoder.accumulator_pos = 0; + TSK_DEBUG_INFO("tdav_codec_vp8_close_decoder(end)"); + + return 0; +} + +/* ============ VP8 RTP packetizer/depacketizer ================= */ + + +static void tdav_codec_vp8_encap(tdav_codec_vp8_t* self, const vpx_codec_cx_pkt_t *pkt) +{ + tsk_bool_t non_ref, is_keyframe, part_start; + uint8_t *frame_ptr; + uint32_t part_size, part_ID, pkt_size, index; + + if (!self || !pkt || !pkt->data.frame.buf || !pkt->data.frame.sz) { + TSK_DEBUG_ERROR("Invalid parameter"); + return; + } + + index = 0; + frame_ptr = pkt->data.frame.buf; + pkt_size = (uint32_t)pkt->data.frame.sz; + non_ref = (pkt->data.frame.flags & VPX_FRAME_IS_DROPPABLE); + is_keyframe = (pkt->data.frame.flags & VPX_FRAME_IS_KEY); + + +#if defined(VPX_CODEC_USE_OUTPUT_PARTITION) + part_ID = pkt->data.frame.partition_id; + part_start = tsk_true; + part_size = pkt_size; + while (index < part_size) { + uint32_t frag_size = TSK_MIN(TDAV_VP8_RTP_PAYLOAD_MAX_SIZE, (part_size - index)); + tdav_codec_vp8_rtp_callback( + self, + &frame_ptr[index], + frag_size, + part_ID, + part_start, + non_ref, + ((pkt->data.frame.flags & VPX_FRAME_IS_FRAGMENT) == 0 && (index + frag_size) == part_size) // RTP marker? + ); + part_start = tsk_false; + index += frag_size; + } +#else + // first partition (contains modes and motion vectors) + part_ID = 0; // The first VP8 partition(containing modes and motion vectors) MUST be labeled with PartID = 0 + part_start = tsk_true; + part_size = (frame_ptr[2] << 16) | (frame_ptr[1] << 8) | frame_ptr[0]; + part_size = (part_size >> 5) & 0x7FFFF; + if (part_size > pkt_size) { + TSK_DEBUG_ERROR("part_size is > pkt_size(%u,%u)", part_size, pkt_size); + return; + } + + // first,first,....partitions (or fragment if part_size > TDAV_VP8_RTP_PAYLOAD_MAX_SIZE) + while (index<part_size) { + uint32_t frag_size = TSK_MIN(TDAV_VP8_RTP_PAYLOAD_MAX_SIZE, (part_size - index)); + tdav_codec_vp8_rtp_callback(self, &frame_ptr[index], frag_size, part_ID, part_start, non_ref, tsk_false); + part_start = tsk_false; + index += frag_size; + } + + // second,third,... partitions (or fragment if part_size > TDAV_VP8_RTP_PAYLOAD_MAX_SIZE) + // FIXME: low FEC + part_start = tsk_true; + while (index<pkt_size) { + if (part_start) { + /* PartID SHOULD be incremented for each subsequent partition, + but MAY be kept at 0 for all packets. PartID MUST NOT be larger + than 8. + */ + part_ID++; + } + part_size = TSK_MIN(TDAV_VP8_RTP_PAYLOAD_MAX_SIZE, (pkt_size - index)); + + tdav_codec_vp8_rtp_callback(self, &frame_ptr[index], part_size, part_ID, part_start, non_ref, (index + part_size)==pkt_size); + index += part_size; + /* + If more than one packet in an encoded frame contains the + same PartID, the S bit MUST NOT be set for any other packet than + the first packet with that PartID. + */ + part_start = tsk_false; + } +#endif /* VPX_CODEC_USE_OUTPUT_PARTITION */ +} + +static void tdav_codec_vp8_rtp_callback(tdav_codec_vp8_t *self, const void *data, tsk_size_t size, uint32_t partID, tsk_bool_t part_start, tsk_bool_t non_ref, tsk_bool_t last) +{ + tsk_size_t paydesc_and_hdr_size = TDAV_VP8_PAY_DESC_SIZE; + tsk_bool_t has_hdr; + /* draft-ietf-payload-vp8-04 - 4.2. VP8 Payload Descriptor + 0 1 2 3 4 5 6 7 + +-+-+-+-+-+-+-+-+ + |X|R|N|S|PartID | (REQUIRED) + +-+-+-+-+-+-+-+-+ + X: |I|L|T|K| RSV | (OPTIONAL) + +-+-+-+-+-+-+-+-+ + I: |M| PictureID | (OPTIONAL) + +-+-+-+-+-+-+-+-+ + L: | TL0PICIDX | (OPTIONAL) + +-+-+-+-+-+-+-+-+ + T/K: |TID|Y| KEYIDX | (OPTIONAL) + +-+-+-+-+-+-+-+-+ + + draft-ietf-payload-vp8-04 - 4.3. VP8 Payload Header + 0 1 2 3 4 5 6 7 + +-+-+-+-+-+-+-+-+ + |Size0|H| VER |P| + +-+-+-+-+-+-+-+-+ + | Size1 | + +-+-+-+-+-+-+-+-+ + | Size2 | + +-+-+-+-+-+-+-+-+ + | Bytes 4..N of | + | VP8 payload | + : : + +-+-+-+-+-+-+-+-+ + | OPTIONAL RTP | + | padding | + : : + +-+-+-+-+-+-+-+-+ + */ + + /* + Note that the header is present only in packets which have the S bit equal to one and the + PartID equal to zero in the payload descriptor. + */ + if ((has_hdr = (part_start && partID == 0))) { + has_hdr = tsk_true; + paydesc_and_hdr_size += 0; // encoded data already contains payload header? + } + + if (!data || !size) { + TSK_DEBUG_ERROR("Invalid parameter"); + return; + } + if (self->encoder.rtp.size < (size + paydesc_and_hdr_size)) { + if (!(self->encoder.rtp.ptr = tsk_realloc(self->encoder.rtp.ptr, (size + paydesc_and_hdr_size)))) { + TSK_DEBUG_ERROR("Failed to allocate new buffer"); + return; + } + self->encoder.rtp.size = (size + paydesc_and_hdr_size); + } + memcpy((self->encoder.rtp.ptr + paydesc_and_hdr_size), data, size); + + /* VP8 Payload Descriptor */ + // |X|R|N|S|PartID| + self->encoder.rtp.ptr[0] = (partID & 0x0F) // PartID + | ((part_start << 4) & 0x10)// S + | ((non_ref << 5) & 0x20) // N + // R = 0 +#if TDAV_VP8_DISABLE_EXTENSION + | (0x00) // X=0 +#else + | (0x80) // X=1 +#endif + ; + +#if !TDAV_VP8_DISABLE_EXTENSION + // X: |I|L|T|K| RSV | + self->encoder.rtp.ptr[1] = 0x80; // I = 1, L = 0, T = 0, K = 0, RSV = 0 + // I: |M| PictureID | + self->encoder.rtp.ptr[2] = (0x80 | ((self->encoder.pic_id >> 8) & 0x7F)); // M = 1 (PictureID on 15 bits) + self->encoder.rtp.ptr[3] = (self->encoder.pic_id & 0xFF); +#endif + + /* 4.2. VP8 Payload Header */ + //if(has_hdr) { + // already part of the encoded stream + //} + + // Send data over the network + if (TMEDIA_CODEC_VIDEO(self)->out.callback) { + TMEDIA_CODEC_VIDEO(self)->out.result.buffer.ptr = self->encoder.rtp.ptr; + TMEDIA_CODEC_VIDEO(self)->out.result.buffer.size = (size + TDAV_VP8_PAY_DESC_SIZE); + TMEDIA_CODEC_VIDEO(self)->out.result.duration = (uint32_t)((1. / (double)TMEDIA_CODEC_VIDEO(self)->out.fps) * TMEDIA_CODEC(self)->plugin->rate); + TMEDIA_CODEC_VIDEO(self)->out.result.last_chunck = last; + TMEDIA_CODEC_VIDEO(self)->out.callback(&TMEDIA_CODEC_VIDEO(self)->out.result); + } +} + +#endif /* HAVE_LIBVPX */ |
