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[91.159.194.103]) by smtp.gmail.com with ESMTPSA id 1sm6140940ljr.6.2020.08.18.12.25.40 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Aug 2020 12:25:40 -0700 (PDT) From: =?utf-8?q?Jan_Ekstr=C3=B6m?= To: ffmpeg-devel@ffmpeg.org Date: Tue, 18 Aug 2020 22:25:36 +0300 Message-Id: <20200818192538.35023-2-jeebjp@gmail.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818192538.35023-1-jeebjp@gmail.com> References: <20200818192538.35023-1-jeebjp@gmail.com> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 1/3] avcodec/aacdec_template: keep tabs on layout in sniff_channel_order X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" This way the layout set at various points can be checked instead of only having the layout at the end. --- libavcodec/aacdec_template.c | 53 ++++++++++++++++++++++-------------- 1 file changed, 32 insertions(+), 21 deletions(-) diff --git a/libavcodec/aacdec_template.c b/libavcodec/aacdec_template.c index 8c5048cc13..9eef1c0158 100644 --- a/libavcodec/aacdec_template.c +++ b/libavcodec/aacdec_template.c @@ -198,7 +198,7 @@ struct elem_to_channel { static int assign_pair(struct elem_to_channel e2c_vec[MAX_ELEM_ID], uint8_t (*layout_map)[3], int offset, uint64_t left, - uint64_t right, int pos) + uint64_t right, int pos, uint64_t *layout) { if (layout_map[offset][0] == TYPE_CPE) { e2c_vec[offset] = (struct elem_to_channel) { @@ -207,6 +207,9 @@ static int assign_pair(struct elem_to_channel e2c_vec[MAX_ELEM_ID], .elem_id = layout_map[offset][1], .aac_position = pos }; + if (e2c_vec[offset].av_position != UINT64_MAX) + *layout |= e2c_vec[offset].av_position; + return 1; } else { e2c_vec[offset] = (struct elem_to_channel) { @@ -221,6 +224,9 @@ static int assign_pair(struct elem_to_channel e2c_vec[MAX_ELEM_ID], .elem_id = layout_map[offset + 1][1], .aac_position = pos }; + if ((left|right) != UINT64_MAX) + *layout |= (left|right); + return 2; } } @@ -262,7 +268,7 @@ static uint64_t sniff_channel_order(uint8_t (*layout_map)[3], int tags) int i, n, total_non_cc_elements; struct elem_to_channel e2c_vec[4 * MAX_ELEM_ID] = { { 0 } }; int num_front_channels, num_side_channels, num_back_channels; - uint64_t layout; + uint64_t layout = 0; if (FF_ARRAY_ELEMS(e2c_vec) < tags) return 0; @@ -294,6 +300,7 @@ static uint64_t sniff_channel_order(uint8_t (*layout_map)[3], int tags) .elem_id = layout_map[i][1], .aac_position = AAC_CHANNEL_FRONT }; + layout |= e2c_vec[i].av_position; i++; num_front_channels--; } @@ -301,21 +308,21 @@ static uint64_t sniff_channel_order(uint8_t (*layout_map)[3], int tags) i += assign_pair(e2c_vec, layout_map, i, AV_CH_FRONT_LEFT_OF_CENTER, AV_CH_FRONT_RIGHT_OF_CENTER, - AAC_CHANNEL_FRONT); + AAC_CHANNEL_FRONT, &layout); num_front_channels -= 2; } if (num_front_channels >= 2) { i += assign_pair(e2c_vec, layout_map, i, AV_CH_FRONT_LEFT, AV_CH_FRONT_RIGHT, - AAC_CHANNEL_FRONT); + AAC_CHANNEL_FRONT, &layout); num_front_channels -= 2; } while (num_front_channels >= 2) { i += assign_pair(e2c_vec, layout_map, i, UINT64_MAX, UINT64_MAX, - AAC_CHANNEL_FRONT); + AAC_CHANNEL_FRONT, &layout); num_front_channels -= 2; } @@ -323,14 +330,14 @@ static uint64_t sniff_channel_order(uint8_t (*layout_map)[3], int tags) i += assign_pair(e2c_vec, layout_map, i, AV_CH_SIDE_LEFT, AV_CH_SIDE_RIGHT, - AAC_CHANNEL_FRONT); + AAC_CHANNEL_FRONT, &layout); num_side_channels -= 2; } while (num_side_channels >= 2) { i += assign_pair(e2c_vec, layout_map, i, UINT64_MAX, UINT64_MAX, - AAC_CHANNEL_SIDE); + AAC_CHANNEL_SIDE, &layout); num_side_channels -= 2; } @@ -338,14 +345,14 @@ static uint64_t sniff_channel_order(uint8_t (*layout_map)[3], int tags) i += assign_pair(e2c_vec, layout_map, i, UINT64_MAX, UINT64_MAX, - AAC_CHANNEL_BACK); + AAC_CHANNEL_BACK, &layout); num_back_channels -= 2; } if (num_back_channels >= 2) { i += assign_pair(e2c_vec, layout_map, i, AV_CH_BACK_LEFT, AV_CH_BACK_RIGHT, - AAC_CHANNEL_BACK); + AAC_CHANNEL_BACK, &layout); num_back_channels -= 2; } if (num_back_channels) { @@ -355,6 +362,7 @@ static uint64_t sniff_channel_order(uint8_t (*layout_map)[3], int tags) .elem_id = layout_map[i][1], .aac_position = AAC_CHANNEL_BACK }; + layout |= e2c_vec[i].av_position; i++; num_back_channels--; } @@ -366,6 +374,7 @@ static uint64_t sniff_channel_order(uint8_t (*layout_map)[3], int tags) .elem_id = layout_map[i][1], .aac_position = AAC_CHANNEL_LFE }; + layout |= e2c_vec[i].av_position; i++; } if (i < tags && layout_map[i][2] == AAC_CHANNEL_LFE) { @@ -375,6 +384,7 @@ static uint64_t sniff_channel_order(uint8_t (*layout_map)[3], int tags) .elem_id = layout_map[i][1], .aac_position = AAC_CHANNEL_LFE }; + layout |= e2c_vec[i].av_position; i++; } while (i < tags && layout_map[i][2] == AAC_CHANNEL_LFE) { @@ -384,6 +394,7 @@ static uint64_t sniff_channel_order(uint8_t (*layout_map)[3], int tags) .elem_id = layout_map[i][1], .aac_position = AAC_CHANNEL_LFE }; + layout |= e2c_vec[i].av_position; i++; } @@ -394,41 +405,45 @@ static uint64_t sniff_channel_order(uint8_t (*layout_map)[3], int tags) .syn_ele = layout_map[i][0], .elem_id = layout_map[i][1], .aac_position = layout_map[i][2] - }; i++; + }; layout |= e2c_vec[i].av_position; i++; i += assign_pair(e2c_vec, layout_map, i, AV_CH_TOP_FRONT_LEFT, AV_CH_TOP_FRONT_RIGHT, - AAC_CHANNEL_FRONT); + AAC_CHANNEL_FRONT, + &layout); i += assign_pair(e2c_vec, layout_map, i, AV_CH_TOP_SIDE_LEFT, AV_CH_TOP_SIDE_RIGHT, - AAC_CHANNEL_SIDE); + AAC_CHANNEL_SIDE, + &layout); e2c_vec[i] = (struct elem_to_channel) { .av_position = AV_CH_TOP_CENTER, .syn_ele = layout_map[i][0], .elem_id = layout_map[i][1], .aac_position = layout_map[i][2] - }; i++; + }; layout |= e2c_vec[i].av_position; i++; i += assign_pair(e2c_vec, layout_map, i, AV_CH_TOP_BACK_LEFT, AV_CH_TOP_BACK_RIGHT, - AAC_CHANNEL_BACK); + AAC_CHANNEL_BACK, + &layout); e2c_vec[i] = (struct elem_to_channel) { .av_position = AV_CH_TOP_BACK_CENTER, .syn_ele = layout_map[i][0], .elem_id = layout_map[i][1], .aac_position = layout_map[i][2] - }; i++; + }; layout |= e2c_vec[i].av_position; i++; e2c_vec[i] = (struct elem_to_channel) { .av_position = AV_CH_BOTTOM_FRONT_CENTER, .syn_ele = layout_map[i][0], .elem_id = layout_map[i][1], .aac_position = layout_map[i][2] - }; i++; + }; layout |= e2c_vec[i].av_position; i++; i += assign_pair(e2c_vec, layout_map, i, AV_CH_BOTTOM_FRONT_LEFT, AV_CH_BOTTOM_FRONT_RIGHT, - AAC_CHANNEL_FRONT); + AAC_CHANNEL_FRONT, + &layout); } total_non_cc_elements = n = i; @@ -459,14 +474,10 @@ static uint64_t sniff_channel_order(uint8_t (*layout_map)[3], int tags) } - layout = 0; for (i = 0; i < total_non_cc_elements; i++) { layout_map[i][0] = e2c_vec[i].syn_ele; layout_map[i][1] = e2c_vec[i].elem_id; layout_map[i][2] = e2c_vec[i].aac_position; - if (e2c_vec[i].av_position != UINT64_MAX) { - layout |= e2c_vec[i].av_position; - } } return layout;